USES, FUNDING, AND AVAILABILITY OF CONTINUOUS

STREAMFLOW DATA IN

By Ronald R. Shields and Melvin K. White

U.S. Geological Survey

Open-File Report 84-862

Helena, Montana February 1985 DEPARTMENT OF THE INTERIOR

WILLIAM P. CLARK, Secretary

GEOLOGICAL SURVEY

Dallas L. Peck, Director

For additional information Copies of this report can be write to: purchased from:

District Chief Open-File Services Section U.S. Geological Survey Western Distribution Branch 428 Federal Building U.S. Geological Survey 301 South Park, Drawer 10076 Box 25425, Federal Center Helena, MT 59626-0076 Lakewood, CO 80225-0425 CONTENTS

Page

Abstract...... 1 Introduction ...... 1 History of the streamflow-gaging program in Montana ...... 2 Hydrologic setting...... 3 Current Montana stream-gaging program ...... 6 Uses, funding, and availability of continuous streamflow data ...... 6 Data-use classes...... 6 Regional hydrology...... 7 Hydrologic systems...... 7 Legal obligations ...... 7 Planning and design ...... 9 Project operation ...... 9 Hydrologic forecasts...... 9 Water-quality monitoring...... 10 Research...... 10 Other ...... 10 Funding ...... 11 Frequency of data availability...... 11 Data-use presentation ...... 11 Summary ...... 11 References cited...... 12

ILLUSTRATIONS

Figure 1. Graph showing history of continuous streamflow-gaging stations in Montana...... 4 2. Map showing location of surface-water gaging stations, 1984 water year ...... 5 3. Map showing location of regional hydrology gaging stations, 1984 water year ...... 8

TABLES

Table 1. Selected hydrologic data for stations in the surface-water program...... 13 2. Data use, funding, and data availability for stations in the surface-water program...... 31

III USES, FUNDING, AND AVAILABILITY OF CONTINUOUS

STREAMFLOW DATA IN MONTANA

By

Ronald R. Shields and Melvin K. White

ABSTRACT

This report documents the results of a study of the uses, funding, and availability of continuous streamflow data collected and published by the U.S. Geological Survey in Montana. Data uses and funding sources are identified for the 218 continuous streamflow gages currently (1984) being operated. These stations are supported by 18 different funding sources at a budget for the 1984 water year of $1,065,000.

The streamflow-gaging program in Montana has evolved through the years as Federal, State, and local needs for surface-water data have in­ creased. Continuous streamflow records for periods ranging from less than 1 year to more than 90 years have been collected.

This report describes phase 1 of a cost-effectiveness study of the streamflow-gaging program in Montana. Evaluation of the program indicates that numerous agencies use the data for studies involving regional hydrol­ ogy* hydrologic systems, and planning and design. They also use the data for operations of existing hydroelectric and irrigation dams, forecasting flood and seasonal flows, water-quality monitoring, research studies for fish habitat, and other uses such as recreational management.

INTRODUCTION

The U.S. Geological Survey is the principal Federal agency collecting surface- water data in the Nation. The collection of these data is a major activity of the Geological Survey. The data are collected in cooperation with State and local governments and other Federal agencies. The Survey is presently (1984) operating about 8,000 continuous-record gaging stations nationwide. Some of these records extend back to the turn of the century. Any activity of long standing, such as the collection of surface-water data, needs to be reexamined at intervals, if not continuously, because of changes in objectives, technology, or external constraints. The last systematic nationwide evaluation of the streamflow-information program was completed in 1970 and is documented by Benson and Carter (1973). The Survey is presently (1984) undertaking another nationwide analysis of the streamflow-gaging program that will be completed during a 5-year period, with 20 percent of the program being analyzed each year. This report deals with the first aspect of that analysis, which is data use and availability. The purpose of this report is to define and document the current streamflow-data collection program in Montana and to briefly discuss the history of its development. For every continuous-record gaging station operated during the 1984 water year, the analysis identifies the principal uses of the data and relates these uses to the funding sources. In addition, gaging stations are categorized as to whether the data are available to users in a real-time sense, on a daily basis during floods, on a periodic basis, or at the end of the water year.

This report is patterned after a pilot study for the State of Maine (Fontaine and others, 1984). Much of the material describing the general methodology is taken from the report by Fontaine and others (1984). This report is organized into two sections; the first is an introduction to the streamflow-gaging activities in Montana and the second describes the current Montana streamflow-gaging program.

History of the streamflow-gaging program in Montana

The streamflow-gaging program has evolved through the years as Federal, State, and local needs for surface-water data have increased. Continuous streamflow records for periods ranging from less than 1 year to more than 90 years have been collected. The earliest known records of river stage in Montana are for the sta­ tion at Fort Benton (06090800). Gage-height records were collected at this station during the summers of 1873-76, 1881-99, and 1901-09 by the Missouri River Commission, the U.S. Army Corps of Engineers, and the U.S. Weather Bureau. Although river-stage records have been collected in Montana since 1873, a system­ atic collection of streamflow records was not begun by the Geological Survey until 1889 as a part of the work being conducted by the Irrigation Survey. In 1889 the Survey established gaging stations at sites on the Gallatin River at Gallatin Gate­ way, Missouri River at Canyon Ferry, Sun River near Augusta, and the Yellowstone River at Corwin Springs. These early gages were serviced by observers who read staff and wire-weight gages, and the data were primarily collected to determine the availability of water to satisfy irrigation needs of a particular area.

The depression of 1893 and the severe droughts of the late 1890's pointed out the need for irrigating the arid lands of the Western States, and various appropri­ ations were sought from Congress for making hydrologic surveys and for water availa­ bility and potential reservoir-site studies. In 1902, Congress adopted the Recla­ mation Act. The Director of the Geological Survey was given the authority to col­ lect hydrologic records needed by the public and the scientific community. The number of streamflow-gaging stations increased each year as the irrigation investi­ gations identified data requirements. In 1906, the Montana State Legislature cre­ ated the Carey Land Act Board, which resulted in the Geological Survey and the State of Montana entering into a Federal-State cooperative agreement. In 1907 the Survey operated 87 gaging stations.

Further expansion of the streamflow-gaging program in Montana resulted from (1) The beginning of international coordination and cooperation with the Canadian Irrigation Office in 1913, as the result of a treaty, which directed the Interna­ tional Joint Commission to supervise the division of waters in the St. Mary and Milk River basins, and (2) the establishment of gaging stations within the national parks starting in 1916. In 1928, the U.S. Department of State expanded their co­ operative programs in connection with studies of international streams along the Canadian boundary. In the same year the U.S. Army Corps of Engineers expanded their comprehensive studies of major rivers with emphasis on flood control (Boner and Buswell, 1970). The result was an increase in number of gaging stations from 72 in 1927 to 114 in 1929. The work continued and by September 30, 1938, records for varying time periods had been collected by the Geological Survey and cooperating agencies at 372 gaging stations, of which 145 were in operation on September 30, 1938. On December 31, 1943, a total of 154 stations were in operation. About one-half of these stations were maintained under cooperative agreements with the State of Montana.

In 1946 gaging stations were starting to be established in connection with reservoir projects under consideration in the upper Missouri River basin by the U.S. Bureau of Reclamation. Other stations were established for the Montana State Engineer and the Montana State Water Conservation Board (presently the Montana Department of Natural Resources and Conservation) in connection with project studies and the expansion of a hydrologic network to obtain streamflow data.

On July 1, 1955, a study of the magnitude and frequency of floods from small drainages was begun in cooperation with the Montana State Highway Commission. This initial program consisting of 45 crest-stage gaging stations was expanded to 138 gages in 1959 and to 202 gages in 1963. About 200 crest-stage gages were in opera­ tion from 1963 to 1967, and 185 in 1968 and 1969. At present (1984) 166 crest- stage gages are still in operation.

In 1958, in cooperation with the Montana Water Resources Board, nine sites were designated to define low-flow characteristics; peak-flow data were also col­ lected to aid in defining flood-frequency relations in prairie areas. Ten addi­ tional sites were added in 1961. In addition to these nineteen sites, thousands of base-flow measurements have been made at miscellaneous sites throughout the State for various projects and special studies (Boner and Buswell, 1970). These data are published in the report, "Water Resources Data, Montana" (U.S. Geological Survey, issued annually).

The study by Boner and Buswell (1970) described the development of Montana's surface-water program to meet the future needs of water-data users. At the time of that study, the Montana program had 160 continuous-record gages. Not included in that count were 35 stations (generally seasonal) in the Milk River basin within Canada and 58 reservoir gages. At present (1984) there are 218 continuous-record gaging stations being operated on rivers and streams in Montana, by the Geological Survey. This number does not include Canadian and reservoir stations that are published in the annual report. The historical number of stream-gaging stations published by Montana each year is shown in figure 1.

Hydrologic setting

The Hudson Bay and upper Missouri River basins in Montana drain about 83 per­ cent of the State and provide slightly less than 50 percent of the State's total streamflow. The location of the major river basins is shown in figure 2. The Hudson Bay basin comprises less than 1 percent of the drainage area; the major river in the basin is the St. Mary River, which flows from Montana's Glacier Na­ tional Park northward into Canada to the Saskatchewan River and then into Hudson Bay. The Missouri River, which is formed by the confluence of the Jefferson, Madi­ son, and Gallatin Rivers in southwestern Montana, flows through the northeastern part of the State and into North Dakota. Its major tributaries are the Dearborn, Smith, Sun, Teton, Marias, Judith, Musselshell, Milk, Redwater, and Poplar Rivers. The Milk River originates in Montana, flows north into Canada, and then flows southeastward back into Montana. The Poplar River flows from its source in Canada 300

1890 1900 1990

Figure 1. History of continuous streamflow-gaging stations in Montana. southward into Montana. The Yellowstone River, which originates in Wyoming, drains the south-central and southeastern sections of Montana; it joins the Missouri River just east of the Montana-North Dakota line. The major tributaries to the Yellow- stone are the Shields, Boulder, and Stillwater Rivers that originate in Montana and the Clarks Fork Yellowstone, Bighorn, Tongue, and Powder Rivers that have their source in Wyoming and then flow northward into Montana.

The western and southwestern parts of the upper Missouri River basin are in the Northern Rocky Mountain physiographic province. The northern and eastern parts are in the Great Plains province. Climatic and hydrologic conditions differ sig­ nificantly between the two provinces. The elevation ranges from about 10,000 feet at the Continental Divide in Glacier National Park and in the headwaters of the Yellowstone River in Yellowstone National Park to about 1,880 feet where the Mis­ souri and Yellowstone Rivers flow from the State (Shields and others, 1984a). 49-

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EXPLANATION I ,

....Major drainage divide \ j > 05 Hudson Bay j V V 160 .4S-I-. s \\ ' i 06 Missouri River drainage basin -f-^=^4« | I ^^ i <"" V 1890 2900 3063 i 12 Columbia River drainage basin >'% : i \ i Stream-gaging station and abbreviated number \ > ( ~~~ S J369.05, J Principal reservoir-gaging station BOW iron u.s. o«io*«i &jr«y, l865 i and abbreviated number j

1L ...______L____.____,' ______. j ___ _ L lt*» nlS*^ Ii4" ITST TiJ" -isr

Figure 2. Location of surface-water gaging stations, 1984 water year. The upper Columbia River basin in is composed of three major river systems. They are: the Kootenai River, which flows through Montana from its headwaters in British Columbia, Canada; the Clark Fork (River) that originates in Montana; and the Flathead River, whose North Fork headwaters are in British Colum­ bia. The Flathead River joins with the Clark Fork near Plains, Mont., and flows northwest from the State as the Clark Fork. The upper Columbia River basin lies in the Northern Rocky Mountain physiographic province, which is characterized by densely forested mountains and intermontane valleys where most of the area's popu­ lation has settled. The range in elevation of the basin is dramatic. Where the Kootenai River flows from the State, the elevation is about 1,800 feet above sea level in contrast to an elevation of about 10,000 feet at the Continental Divide in Glacier National Park. The upper Columbia River basin occupies about 17 percent of the State; however, runoff from the basin is greater that 50 percent of the State's total streamflow (Shields and others, 1984b).

Over 2 1/2 million acres are fully or partially irrigated. Surface water sources yield 99 percent of this water, whereas 1 percent is obtained from ground- water sources (Montana Department of Natural Resources and Conservation, 1975).

Current Montana stream-gaging program

The location of the gaging stations in operation during the 1984 water year is shown in figure 2. The cost of operating the 218 stations within Montana during the 1984 water year was $1,065,000.

Selected hydrologic data, including drainage area, period of record, and mean annual flow for the 218 stations are listed in table 1. The official name of each stream gage is also given in the table. Because Montana has three major hydrologic drainage basins, station-identification numbers used in this report will include the entire Geological Survey's eight-digit station number, except in the illustra­ tions. Abbreviated station numbers are used on maps to eliminate crowding of num­ bers. The station-identification number is assigned according to downstream order.

USES, FUNDING, AND AVAILABILITY OF CONTINUOUS STREAMFLOW DATA

The relevance of a stream gage is defined by the uses made of the data obtained from the gage. The uses of the data from each gage in the Montana program were identified by a survey of known data users. The survey documented the importance of each gage and identified gaging stations that might be considered for discontin­ uation.

Data uses identified by the survey were categorized into nine classes, defined below. The sources of funding for each gage and the frequency at which data are provided to the users were also compiled and are described later.

Data-use classes

The following definitions were used to categorize each known use of streamflow data for each continuous stream gage. Regional hydrology For data to be useful in defining regional hydrology, a stream gage must be largely unaffected by manmade storage or diversion. In this class of use, the effects of man on streamflow are not necessarily small, but the effects are limited to those caused primarily by land-use and climate changes. Large amounts of man- made storage may exist in the basin providing the outflow is uncontrolled. These stations are useful in developing regionally transferable information about the relationship between basin characteristics and streamflow.

Seventy-six stations in the Montana network are classified in the regional hy­ drology data-use category. Seven of the stations are special in that they are des­ ignated bench-mark or index stations. Hydrologic bench-mark stations are part of a national network of 57 stations operated in watersheds that are relatively free from manmade alterations; the network is intended to define long-term trends. Index stations are used to prepare a national monthly summary of water conditions. Of the 76 stations in the regional hydrology category, 2 are hydrologic bench-mark stations and 5 are index stations. The location of stream gages that provide in­ formation about regional hydrology is shown in figure 3.

Hydrologic systems

Stations that can be used for accounting, that is, to define current hydro- logic conditions and the sources, sinks, and fluxes of water through hydrologic systems including regulated systems, are designated as hydrologic systems stations. These stations record diversions and return flows that are useful for defining the interaction of water systems.

Bench-mark and index stations are included in the hydrologic systems category, because they are accounting for current and long-term conditions of the hydrologic systems that they gage. International gaging stations, located on significant drainages that cross the international boundary, are also included. Depending on streamflow conditions in any particular year, water may have to be allocated among users by the Montana Department of Natural Resources and Conservation. Many sta­ tions are used by that agency for administration of water rights throughout the State. Also included in this category are stations used for accounting of flows in U.S. Bureau of Reclamation irrigation project areas and of flood-control projects developed by the U.S. Army Corps of Engineers.

Legal obligations

Some stations provide records of flow for the verification or enforcement of existing treaties, compacts, and decrees. This category contains those stations that the Geological Survey is required to operate to satisfy a legal responsibility. The International Joint Commission designates the Survey to operate gaging stations needed for the equitable distribution of water along the Canadian boundary (Article VI, Treaty Between the United States and Great Britain Relating to Boundary Waters and Questions Arising Between the United States and Canada). Forty gaging stations either in Montana or in Canadian provinces north of Montana are used for this purpose. Reservoirs are not included in this count. Only 15 of the 40 international stations were considered near enough to the international boundary (within 3 miles) to be included in table 1. Also included in this category are four Yellowstone River _US1

49*

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i | 2 Columbia River drainage basin x

"W -(i'jd- -rfr-- #S» '-«» '

Figure 3. Location of regional hydrology gaging stations, 1984 water year. Compact gaging stations used to apportion the waters of certain interstate tribu­ taries of the Yellowstone River (Yellowstone River Compact Commission, 1983).

Planning and design

Gaging stations in this data-use category are used for the planning and design of a specific project (for example, a dam, levee, floodwall, navigation system, water-supply diversion, hydropower plant, or waste-treatment facility) or group of structures. The planning and design category is limited to those stations that were instituted for such purposes and where this purpose is still valid.

Twenty-five stations are included in this category. Twelve stations with less than 2 years of record (as of 1984) are used by the U.S. Bureau of Indian Affairs to plan and design water-use projects on Montana Indian reservations; ten stations in north-central Montana are used to determine water availability for stock reser­ voirs; two Muddy Creek stations near Vaughn (06088300 and 06088500) are used to monitor return flows from an irrigation project; and one station Willow Creek near Glasgow (06174000), is used in an independent basin study to determine efficiency of existing retention reservoirs.

Project operation

Gaging stations in this category are used, on a continuing basis, to assist water managers in making operational decisions such as reservoir releases, hydro- power operations, or diversions. The project operation use generally implies that the data are routinely available to the operators on a rapid-reporting basis. For projects on large streams, data may be needed only every few days.

There are 71 stations being operated in this category. Thirty-nine of these are used to aid operators in the management of reservoirs and control structures that are part of hydropower production systems. The remaining 32 stations are: 13 stations used by the International Joint Commission to administer distribution of water in the St. Mary basin or to assist irrigation districts in project areas; 8 stations being operated to facilitate operation of the Missouri River system; 7 stations used to determine the Milk River natural flow; 2 stations used to quantify inflow-outflow determinations; and 2 stations operated to meet Federal Energy Reg­ ulatory Commission licensing requirements.

Hydrologic forecasts

Gaging stations in this category are regularly used to provide information for hydrologic forecasting. These might be flood forecasts for a specific river reach, or periodic (daily, weekly, monthly, or seasonal) flow-volume forecasts for a spe­ cific site or region. The hydrologic forecasts use generally implies that the data are routinely available to the forecasters on a rapid-reporting basis. On large streams, data may be needed only every few days.

Most stations in the Montana program included in this category are those used for flood forecasting by the National Weather Service, and those used for predict­ ing irrigation season streamflow runoff based on snow-survey data collected and forecasted by the U.S. Soil Conservation Service. During some part of the year 45 stations provide direct access to river-stage data using satellite telemetry equip­ ment. 9 Water-quality monitoring

Gaging stations where regular water-quality or sediment-transport monitoring is being conducted and where the availability of streamflow data contributes to the utility or is essential to the interpretation of the water-quality or sediment data are designated as water-quality-monitoring sites. Stations operated as part of the National Stream-Quality Accounting Network (NASQAN) are included in this category. NASQAN stations are operated to define both areal variability and trends in stream quality. There are 19 NASQAN stations in Montana.

In addition to the NASQAN stations, water-quality data are being collected at other stations as follows: (1) Baseline hydrologic data at 19 stations in as part of regional coal studies, (2) annual daily or seasonal daily sus­ pended-sediment sampling at 6 stations, (3) continuous temperature and specific conductance monitoring at 6 stations in Yellowstone National Park as part of a geo- thermal study being conducted jointly by the National Park Service and the Geologi­ cal Survey, (4) data collection at 2 stations at the international boundary in the Poplar River basin as part of a U.S. and Canadian monitoring agreement, and (5) continuous monitoring of temperature at 10 stations under a cooperative program with the Montana Department of Fish, Wildlife and Parks. Also about 30 other sta­ tions have water-quality data being collected for miscellaneous purposes. Those sites can generally be categorized as follows: baseline hydrology on Montana Indian reservations, requests from Interior Department agencies for Missouri River basin water-quality work, and data collection for planning by the U.S. Army Corps of Engineers.

Research

Gaging stations in this category are operated for a particular research or water investigations study. The largest user of surface-water data for research is the Montana Department of Fish, Wildlife and Parks. Seventy stations, although not primarily funded for research, are used in compiling data on fisheries habitat. The next largest user of data for research is the Montana Department of State Lands. Twelve stations are included in this category. Generally these stations are estab­ lished on small drainage basins and data are collected to determine water availa­ bility for basin modeling and regional planning. Finally, data are collected at six stations in or near Yellowstone National Park for the purpose of developing a baseline hydrologic data base.

Other

In addition to the eight classes above, several Montana stations are used to provide other information. Twenty-five stations are used to provide recreational planning and river floating information by the Montana Department of Fish, Wildlife and Parks. These stations are primarily located in western Montana or just east of the Continental Divide. Seven other stations, located on lower Yellowstone River basin tributaries, are used by the Office of Surface Mining to assess the cumulative hydrologic impact of coal mining in these areas. Seven stations located on the Clark Fork are being used by the Montana Department of Fish, Wildlife and Parks in their study to request in-stream reserve water rights to protect fisheries. Also three Missouri River mainstem stations upstream from Fort Peck Reservoir are used by the U.S. Bureau of Land Management in water-resource management of the Wild and Scenic Rivers Act as approved by Congress.

10 Funding

The four sources of funding for the streamflow-data program are:

1. Federal program. Funds that have been directly allocated to the Geologi­ cal Survey.

2. Other Federal agency (OFA) program. Funds that have been transferred to the Geological Survey by other Federal agencies.

3. Cooperative program. Funds that come jointly from Geological Survey coop­ erative-designated funding and from a non-Federal cooperating agency. Cooperating agency funds may be in the form of direct services or cash.

4. Other non-Federal programs. Funds that are provided entirely by a non- Federal agency or a private concern under the auspices of a Federal agency. In this study, funding from private concerns was limited to licensing and permitting requirements for hydropower development by the Federal Energy Regulatory Commis­ sion. Funds in this category are not matched by Geological Survey cooperative funds.

In all four categories, the identified sources of funding pertain only to the collection of streamflow data; sources of funding for other activities, particular­ ly collection of water-quality samples, that might be conducted at the site may not necessarily be the same as those identified herein. Eighteen organizations cur­ rently are contributing funds to the Montana streamflow-gaging program.

Frequency of data availability

Frequency of data availability refers to the times at which the streamflow data can be furnished to the users. In this category, three distinct possibili­ ties exist. Data can be furnished by direct-access telemetry equipment for immedi­ ate use, by periodic release of provisional data, or in publication format through the annual data report for Montana published by the Geological Survey. These three categories are designated T, P, A, respectively, in table 2. In the current Mon­ tana program, data for all 218 stations are made available through the annual re­ port, data from 73 stations are available on a real-time basis, and data for 39 stations are released on a provisional basis.

Data-use presentation

Data-use and ancillary information is presented for each continuous-recording gaging station in table 2, which is replete with footnotes to expand the informa­ tion conveyed. The entry of an asterisk in the table indictes that no footnote is required.

SUMMARY

Currently, 218 continuous-record stream gages are being operated by the Geo­ logical Survey in Montana. The cost of their operation for the 1984 water year was $1,065,000. Eighteen individual organizations contributed to the support of the program.

11 The streamflow-gaging program in Montana has evolved through the years as Federal, State, and local needs for surface-water data have increased. Continuous streamflow records for periods ranging from less than 1 year to more than 90 years have been collected. Streamflow data obtained from the program are used by numerous State, Federal, and private organizations. Nine identified uses were regional hy­ drology, hydrologic systems, legal obligations, planning and design, project opera­ tion, hydrologic forecasts, water-quality monitoring, research, and a category described as other. Much of the data from individual stations is put to multiple use. All stations have sufficient use to justify their continued operation.

Data are available on a real-time basis from 45 gages. Information for the remaining 173 stations may be obtained from the annual publication "Water Resources Data, Montana," volumes 1 and 2, or on a provisional monthly basis from the District office in Helena.

REFERENCES CITED

Benson, M. A., and Carter, R. W., 1973, A national study of the streamflow data- collection program: U.S. Geological Survey Water-Supply Paper 2028, 44 p.

Boner, F. C., and Buswell, G. W., 1970, A proposed streamflow-data program for Montana: U.S. Geological Survey open-file report, 96 p.

Fontaine, R. A., Moss, M. E., Smath, J. A., and Thomas, W. 0., Jr., 1984, Cost- effectiveness of the stream-gaging program in Maine: U.S. Geological Survey Water-Supply Paper 2244, 39 p.

Montana Department of Natural Resources and Conservation, 1975, Water use in Montana.' Inventory Series Report No. 13, 26 p.

Shields, R. R., Knapton, J. R., White, M. K., Jacobson, M. A., and Kasman, M. L., 1984a, Mater resources data, Montana Water year 1983, v. 1, Hudson Bay basin and Missouri River basin: U.S. Geological Survey Water-Data Report MT-83-1, 599 p.

__ I984b, Water resources data, Montana Water year 1983, v. 2, Columbia River basin: U.S. Geological Survey Water-Data Report MT-83-2, 200 p.

U.S. Geological Survey, 1966-82 (issued annually), Water resources data for Montana Water years 1966-81; v. 1, Hudson Bay basin and Missouri River basin, and v. 2, Columbia River basin: U.S. Geological Survey Water-Data Reports.

Yellowstone River Compact Commission 1983, Thirty-second annual report, Yellowstone River Compact Commission: Annual report, 22 p.

12 Table 1. Selected hydrologic data for stations in the surface-water program

[All stations are located in Montana except as noted. Symbol: P, Present-1984]

Drainage Mean annual Station area Period of flow1 No. Station name (mi2 ) record (ft3 /s)

05014500 Swiftcurrent Creek at Many 30.9 June 1912-P 144 Glacier.

05016000 Swiftcurrent Creek at Sher- 64.3 July 1912 - 199 burne. Nov. 1915; Mar. 1916 - Oct. 1923; May 1924 - Sept. 1981; Mar. 1984-P

05017500 St. Mary River near Babb 276 July 1901 - 782 Oct. 1902; May 1910 - Sept. 1925; Oct. 1950-P

05018500 St. Mary Canal at St. Mary July 1918-P (2 ) Crossing, near Babb.

05020500 St. Mary River at inter­ 465 Sept. 1902 - 3 1,003 national boundary. Sept. 1916; Oct. 1916-P 695

06016000 Beaverhead River at Barretts 2,737 Aug. 1907-P 430

06018500 Beaverhead River near Twin 3,619 Aug. 1935-P 419 Bridges.

06019500 Ruby River above reservoir, 538 May 1938-P 181 near Alder.

06020600 Ruby River below reservoir, 596 Nov. 1962-P 224 near Alder.

06024590 Wise River near Wise River 214 Oct. 1972-P 188

06025500 Big Hole River near Melrose 2,476 Oct. 1923-P 1,173

06035000 Willow Creek near Harrison 83.8 Apr. 1938 - 40.7 Sept. 1982; Oct. 1982-P2 See footnotes at end of table.

13 Table 1. Selected hydrologic data for stations in the surface-water program Continued

Drainage Mean annual Station area Period of flow1 No. Station name (mi2 ) record (ft3 /s)

06036650 Jefferson River near Three 9,532 Oct. 1978-P 2,553 Forks .

06036905 Firehole River near West 282 Oct. 1983-P (4 ) Yellowstone.

06037000 Gibbon River near West 111 Oct. 1983-P ( 4) Yellowstone.

06037500 Madison River near West 420 June 1913 - 488 Yellowstone. Dec. 1917; July 1918 - Oct. 1923; June 1922 - Sept. 1973; Oct. 1983-P

06038500 Madison River below Hebgen 905 June 1909-P 1,000 Lake, near Grayling.

06038800 Madison River at Kirby Ranch, 1,065 Sept. 1959 - (2 ) near Cameron. Sept. 1963; May 1978-P

06040300 Jack Creek near Ennis 51.5 Sept. 1973-P 47.4

06041000 Madison River below Ennis 2,186 Oct. 1901 - 1,766 Lake, near McAllister. Dec. 1905; Oct. 1906-P

06050000 Hyalite Creek at Hyalite 48.2 Aug. 1895 - 67.4 Ranger Station, near Oct. 1896; Bozeman. Apr. 1898 - Oct. 1899; June - Oct. 1900; May - Sept. 1902; Sept. - Dec. 1904; Sept. 1934-P

06052500 Gallatin River at Logan 1,795 Sept. 1893 - 1,073 Dec. 1905; Aug. 1928-P See footnotes at end of table.

14 Table 1. Selected hydrologic data for stations in the surface-water program Continued

Drainage Mean annual Station area Period of flow 1 No. Station name (mi2 ) record (ft3 /s)

06054500 Missouri River at Toston 14,669 Apr. 1890 - 5,414 Feb. 1891; Apr. 1910 - Dec. 1916; Apr. 1941-P

06061500 Prickly Pear Creek near 192 July 1908 - 50.8 Clancy. Sept. 1916; July 1921 - Sept. 1933; Oct. 1945 - Oct. 1953; Oct. 1954 - Sept. 1969; Oct. 1978-P

06062500 Tenmile Creek near Rimini 32.7 Oct. 1914-P 18.0

06066500 Missouri River below Holter 17,149 Oct. 1945-P 5,673 Dam, near Wolf Creek.

06076690 Smith River near Fort Logan 846 Oct. 1977-P 200

06078200 Missouri River near Ulm 20,941 Aug. 1957-P 6,878

06088300 Muddy Creek near Vaughn 282 June 1968-P 120

06088500 Muddy Creek at Vaughn 314 May 1925 - 128 Feb. 1926; Apr. 1934 - Sept. 1968; July 1971-P

06089000 Sun River near Vaughn 1,854 July - Oct. 726 1897; Apr. 1934-P

06090300 Missouri River near Great 23,292 May - July 8,034 Falls. 1953; Oct. 1956-P

06090800 Missouri River at Fort Benton 24,749 Oct. 1890-P 7,827

06091700 Two Medicine River below South 250 May 1977-P 324 Fork, near Browning

15 Table 1. Selected hydrologic data for stations in the surface-water program Continued

Drainage Mean annual Period of flow 1 Station areaO No. Station name (mi ) record (ft3 /s)

06093200 Badger Creek below Four 152 Oct. 1951-P 5 227 Horns Canal, near Browning.

06099000 Cut Bank Creek at Cut Bank 1,065 Aug. 1905 - 193 Oct. 1919; May - Oct. 1920 ; May 1922 - Oct. 1924; May 1951 - Sept . 1973; Oct. 1981-P

06099500 Marias River near Shelby 3,242 Apr. 1902 - 940 Dec. 1904; May 1905 - Dec. 1906; May 1907 - Jan. 1908; Apr. 1911-P

06101500 Marias River near Chester 4,927 Apr. - Sept. 883 1921 ; Oct. 1945 - Sept . 1947; Oct. 1955-P

06101560 Pondera Coulee near Chester 598 Oct. 1975-P 16.1

06108000 Teton River near Dutton 1,307 Aug. 1954-P 161

06109500 Missouri River at Virgelle 34,379 Feb. 1935-P 8,708

06115200 Missouri River near Landusky 40,987 Feb. 1934-P 9,470

06120500 Musselshell River at Harlowton 1,125 July 1907 - 167 Nov. 1929; Mar. 1930 - Dec. 1932; Apr. - Aug. 1933 ; Feb. 1934-P

See footnotes at end of table.

16 Table 1. Selected hydrologic data for stations in the surface-water program Continued

Drainage Mean annual Station area Period of flow 1 No. Station name (mi2 ) record (ft3 /s)

06126470 Halfbreed Creek near Klein 53.2 Oct. 1977-P 1.34

06126500 Musselshell River near 4,023 May 1946-P 238 Roundup .

06127500 Musselshell River at 4,568 Aug. 1928 - 215 Musselshell. Sept. 1932; Aug. 1945 - Sept. 1979; Oct. 1982-P

06130500 Musselshell River at Mosby 7,846 May - Nov. 301 1929; Mar. 1930 - Sept. 1932; Feb. 1934-P

06131000 Big Dry Creek near Van Norman 2,554 Oct. 1939 - 55.8 July 1969; July 1970-P

06131120 Timber Creek near Van Norman 287 Mar. 1982-P ( 4 )

06131200 Nelson Creek near Van Norman 100 Oct. 1975-P 2.24

06132000 Missouri River below Fort 57,556 Mar. 1934- 6 6,347 Peck Dam. Sept. 1939; 7 10,000 Oct. 1943-P

06132200 South Fork Milk River near 70.4 May 1961-P Babb.

06133000 Milk River at western crossing 401 Mar. 1931-P of international boundary.

06133500 North Fork Milk River above 60.2 May 1911 - St. Mary Canal, near Browning, July 1912; June - July 1918; May 1919-P

17 Table 1. Selected hydrologic data for stations in the surface-water program Continued

Drainage Mean annual Station area Period of flow 1 No. Station name (mi ) record (ft3/ s )

06134000 North Milk River near inter- 91.6 July 1909 - (2 ) national boundary. Oct. 1912; Jan. 1913 - Oct. 1922; Mar. 1923-P

06135000 Milk River at eastern crossing 2,506 Aug. 1909-P (2 ) of international boundary.

06137400 Big Sandy Creek at reservation boundary, near Rocky Boy. 24.7 May 1982-P (4 )

06137570 Boxelder Creek near Rocky Boy 48.2 Oct. 1975-P 9.40

06139500 Big Sandy Creek near Havre 1,805 May 1984-P ( 4 )

06140500 Milk River at Havre 5,785 May - Nov. 3 273 1898; Apr. 1899 - 430 Sept. 1916; Oct. 1916 - Nov. 1922; Mar., Apr. 1923; Mar., Apr. 1952; June 1953; Aug. 1954-P

06142400 Clear Creek near Chinook 135 June 1984-P ( 4 )

06145500 Lodge Creek below McRae Creek, 825 Oct. 1951-P (2 ) at international boundary.

06149500 Battle Creek at international 997 Apr. 1917-P boundary.

06151000 Lyons Creek at international 66.7 Mar. 1927-P boundary.

06151500 Battle Creek near Chinook 1,539 June 1984-P

See footnotes at end of table.

18 Table 1. Selected hydrologic data for stations in the surface-water program Continued

Drainage Mean annual Station areaf\ Period of flow 1 No. Station name (ml ) record (ft3 /s)

06154100 Milk River near Harlem 9 ,822 Oct. 1959 - 391 Sept. 1969; Oct. 1982-P

06154140 Fifteenmile Creek tributary 2.31 May 1983-P ( 4 ) near Harlem.

06154400 Peoples Creek near Hays 220 Dec. 1966-P 17.5

06154410 Little Peoples Creek near Hays 13.0 Aug. 1972-P 5.22

06154490 Willow Coulee near Dodson 5.16 May 1983-P (4 )

06154500 Peoples Creek near Dodson 670 Apr. 1918 - 32.1 Nov. 1921; June 1951 - Sept. 1973; Oct. 1981-P

06154510 Kuhr Coulee tributary near 1.25 May 1983-P ( 4 ) Dodson.

06155030 Milk River near Dodson 11 ,192 Oct. 1982-P ( l+ )

06164000 Frenchman River at inter- 2 ,120 Apr. 1917-P (2 ) national boundary.

06164510 Milk River at Juneberg 17 ,670 Oct. 1977-P 530 Bridge, near Saco.

06164590 Beaver Creek near Zortman 10.1 May 1983-P (4 )

06164615 Little Warm Creek at reservation 6.31 May 1983-P (4 ) boundary, near Zortman.

06164623 Little Warm Creek tributary near 2.42 May 1983-P ( 4 ) Lodge Pole.

06164630 Big Warm Creek near Zortman 53.8 May 1983-P (4 )

06166000 Beaver Creek below Guston 1 ,208 Apr. 1981-P ( 4 ) Coulee, near Saco.

19 Table 1. Selected hydrologic data for stations in the surface-water program Continued

Drainage Mean annual Station area Period of flow 1 No. Station name (mi ) record (ft3 /s)

06169500 Rock Creek below Horse Creek, 328 Mar. 1916 - 18.8 near international boundary. Oct. 1926; 2 Sept. 1956 - Oct. 1978;2 Nov. 1978-P

06169600 South Creek tributary near 2.15 May 1983-P <"> Opheim. 06169700 South Creek tributary No. 2 1.62 May 1983-P 0 near Opheim.

06169800 South Creek tributary No. 3 .32 May 1983-P o*) near international boundary.

06170050 Rock Creek below McEachern 650 May 1983-P (*> Creek, near international boundary.

06170080 Starbuck Coulee near inter- 4.16 May 1983-P <*> national boundary.

06172000 Milk River near Vandalia 20,926 Oct. 1914 - 686 Sept. 1925; Aug. 1928 - Sept. 1939; Oct. 1969 - Sept. 1973; Oct. 1982-P

06174000 Willow Creek near Glasgow 538 Oct. 1953-P 57.3

06174500 Milk River at Nashua 22,332 Oct. 1939-P 710

06175000 Porcupine Creek at Nashua 725 July 1908 - 26.5 Sept. 1924; Oct. 1981-P

06175540 Prairie Elk Creek near 352 Oct. 1975-P 18.6 Oswego.

See footnotes at end of table.

20 Table 1. Selected hydrologic data for stations in the surface-water program Continued

Drainage Mean annual Station area Period of flow1 9 o No. Station name (mi ) record (ft /s)

06176500 Wolf Creek near Wolf Point 251 Aug. 1908 - (l+ ) July 1914; Mar. 1950 - Sept . 1953; Oct. - Sept. 1954 Oct. 1981-P

06177000 Missouri River near Wolf 82,290 Sept . 1928- 6 7,219 Point. Sept . 1939; 7 10,680 Oct. 1943-P

06177400 McCune Creek near Circle 29.9 Mar. 1982-P ( 4 )

06177500 Redwater River at Circle 547 Apr. - Nov. 13.3 1929 Mar. - Nov. 1930 ; July 1931 - Dec. 1932; Mar. - June 1933 ; Feb. - Nov. 1934 ; Apr. 1935 - Dec. 1936; Apr. 1937 - June 1972; Oct. 1974-P

06177650 Redwater River near Richey 1,071 May 1982-P ( 4 )

06177700 Cow Creek tributary near Vida 1.71 Mar. 1982-P ( 4 )

06177825 Redwater River near Vida 1,974 Oct. 1975-P 46.2

06178000 Poplar River at international 362 Mar. 1931-P (2 ) boundary.

06178500 East Poplar River at inter­ 541 Mar. 1931-P national boundary.

21 Table 1. Selected hydro-logic data for stations in the surface-water program Continued

Drainage Mean annual Station area Period of flow1 No. Station name (mi2 ) record (ft3 /s)

06181000 Poplar River near Poplar 3,174 Aug. 1908 - 138 Oct. 1924; Aug. 1947 - Sept. 1969; June 1975 - Sept. 1979; Oct. 1981-P

06181995 Beaver Creek at inter­ 149 July 1977 - ( 4 ) national boundary. Nov. 1982 Nov. 1982-P (2 )

06183450 Big Muddy Creek near Antelope 967 Oct. 1978-P 47.9

06185110 Big Muddy Creek near mouth, 2,684 Nov. 1981-P C 1*) near Culbertson.

06135500 Missouri River near Cul­ 91,557 July 1941- 7 11,000 bertson. Dec. 1951; Apr. 1958-P

06186500 Yellowstone River at Yellow- 1,006 Dec. 1922 - 1,327 stone Lake outlet, Yellow- Sept. 1982; stone National Park. Oct. 1983-P

06187550 Yellowstone River near Tower 1,342 Oct. 1983-P Junction, Yellowstone National Park.

06191500 Yellowstone River at Corwin 2,623 Aug. 1889 - 3,116 Springs. Nov. 1893; Sept. 1910-P

06191800 Big Creek near Emigrant 60.9 Sept. 1973 - 64.8 Sept 1979; Oct. 1982-P

06192500 Yellowstone River near 3,551 May 1897 - 3,767 Livingston. Dec. 1905; Aug. 1928 - Sept. 1932; Oct. 1937-P

See footnotes at end of table.

22 Table 1. Selected hydrologic data for stations in the surface-water program Continued

Drainage Mean annual Station area Period of flow 1 No. Station name (mi^) record (ft3 /s)

06195600 Shields River near Livingston 852 Oct. 1978-P 376

06200000 Boulder River at Big Timber 523 Apr. 1947 - 543 Dec. 1953; Mar. 1955-P 06202510 Stillwater River above Nye 193 Nov. 1979-P 0 Creek, near Nye.

06204050 West Rosebud Creek near Roscoe 52.1 Sept . 1965-P 129

06205000 Stillwater River near Absarokee 975 July 1910 - 970 Sept . 1914; Mar. 1935-P

06207500 Clarks Fork Yellowstone River 1,154 July 1921-P 953 near Belfry.

06208800 Clarks Fork Yellowstone River 2,093 Oct. 1969-P 1,180 near Silesia.

06211000 Red Lodge Creek above Cooney 143 May 1937-P Reservoir, near Boyd.

06211500 Willow Creek near Boyd 53.3 June 1937-P

06212500 Red Lodge Creek below Cooney 210 Sept. 1937-P 102 Reservoir, near Boyd.

06214500 Yellowstone River at Billings 11,795 May 1904 - 7,074 Dec. 1905; Aug. 1928-P

06216000 Pryor Creek at Pryor 117 June 1921 - 39.5 Sept. 1924; Oct. 1966-P

06216900 Pryor Creek near Huntley 582 Oct. 1978-P 79.5

06287000 Bighorn River near St. Xavier 19,667 Oct. 1934-P 3,596

06289000 Little Bighorn River at State 193 Mar. 1939-P 155 line, near Wyola.

23 Table 1. Selected hydrologic data for stations in the surface-water program Continued

Drainage Mean annual Station area Period of flow 1 No. Station name (mi2 ) record (ft3/s)

06290000 Pass Creek near Wyola 111 June 1935 - 35.8 Sept. 1956; Oct. 1982-P

06290500 Little Bighorn River below 428 Mar. 1939 - 214 Pass Creek, near Wyola. Dec. 1958; Aug. 1959 - Sept. 1975; Oct. 1976-P

06291000 Owl Creek near Lodge Grass 163 Apr. 1939 - 10.3 Sept. 1945; Oct. 1979-P

06291500 Lodge Grass Creek above 80.7 Mar. 1939 - 49.8 Willow Creek Diversion, Sept. 1974; near Wyola. Oct. 1982-P

06294000 Little Bighorn River near 1,294 June 1953-P 313 Hardin.

06294500 Bighorn River above Tullock 22,414 Oct. 1981-P 3,939 Creek, near Bighorn.

06294600 East Cabin Creek tributary 8.63 Oct. 1981-P <*> near Hardin.

06294940 Sarpy Creek near Hysham 453 Sept. 1973-P 7.06

06294950 Starved To Death Creek near 36.9 June 1979-P (**) Sanders.

06294995 Armells Creek near Forsyth 370 July 1974-P 6.57

06295000 Yellowstone River at Forsyth 40,339 July 1921 - 11,870 Sept. 1923; Oct. 1977-P

06295100 Rosebud Creek near Kirby 35.5 Oct. 1981-P ( 4 )

06295113 Rosebud Creek at reservation 123 Oct. 1979-P / ») boundary near Kirby.

See footnotes at end of table.

24 Table 1. Selected hydrologic data for stations in the surface-water program Continued

Drainage Mean annual Station area Period of flow 1 No. Station name (mi^) record (ft-Vs)

06295250 Rosebud Creek near Colstrip 799 Oct. 1974-P 45.0

06296003 Rosebud Creek at mouth, near 1,302 Oct. 1974-P 50.9 Rosebud.

06296100 Snell Creek near Hathaway 10.5 Oct. 1981-P <">

06306100 Squirrel Creek near Decker 33.6 Sept . 1975-P 3.43

06306300 Tongue River at State line, 1,477 Aug. 1960-P 494 near Decker.

06306950 South Fork Leaf Rock Creek 4.53 Oct. 1981-P C 4 ) near Kirby.

06307500 Tongue River at Tongue River 1,770 May 1939-P 459 Dam, near Decker.

06307528 Prairie Dog Creek near Birney 19.6 Nov. 1978-P ( 4 )

06307600 Hanging Woman Creek near Birney 470 Sept . 1973-P 4.51

06307616 Tongue River at Birney Day 2,621 Oct. 1979-P <»> School Bridge, near Birney

06307717 Otter Creek below Fifteenmile 453 June 1982-P ( 4) Creek, near Otter

06307740 Otter Creek at Ashland 707 Oct. 1972-P 7.03

06307830 Tongue River below Branden- 4,062 Oct. 1973-P 496 berg Bridge, near Ashland.

06308400 Pumpkin Creek near Miles City 697 Oct. 1972-P 16.1

06308500 Tongue River at Miles City 5,379 Apr. 1938 - 440 Apr. 1942; Apr. 1946-P

06309000 Yellowstone River at Miles 48,253 Sept. 1922 - 11,620 City. Sept. 1923; Aug. 1928-P

06309075 Sunday Creek near Miles 714 Oct. 1974-P 40.5 City.

25 Table 1. Selected hydrologic data for stations in the surface-water program Continued

Drainage Mean annual Station area Period of flow1 No. Station name (mi2 ) record (ft3 /s)

06324500 Powder River at Moorhead 8,088 May 1929 - 460 Sept. 1972; Oct. 1974-P

06324710 Powder River at Broadus 8,748 Oct. 1975-P 488

06326300 Mizpah Creek near Mizpah 797 Oct. 1974-P 16.8

06326500 Powder River near Locate 13,194 Mar. 1938-P 612

06326600 O f Fallen Creek near Ismay 669 Oct. 1977-P 23.7

06326952 Clear Creek near Lindsay . 101 Mar. 1982-P <">

06328200 Lower Sevenmile Creek near 25.2 Mar. 1982-P («») Bloomfield.

06329200 Burns Creek near Savage 233 Oct. 1957 - 6.74 Sept. 1967; Sept. 1975-P

06329500 Yellows tone River near 69,103 Oct. 1910 - 13,080 Sidney. Sept. 1931; Oct. 1933-P

06336447 Duck Creek near Wibaux 46.5 Mar. 1978 - (*) Sept. 1981; May 1982-P

12301300 Tobacco River near Eureka 440 Sept. 1958-P 273

12301933 Kootenai River below Libby 8,985 Oct. 1971-P 11,460 Dam, near Libby.

12302055 Fisher River near Libby 838 Sept. 1967-P 503

12303000 Kootenai River at Libby 10,240 Oct. 1910-P 12,160

12303100 Flower Creek near Libby 11.1 Sept. 1960-P 27.1

12303500 Lake Creek at Troy 210 Jan. 1945 - 510 Sept. 1957; Oct. 1982-P

See footnotes at end of table.

26 Table 1. Selected hydrologic data for stations in the surface-water program Continued

Drainage Mean annual Station areao Period of flow1 No. Station name (mi ) record (ft3 /s)

12304500 Yaak River near Troy 766 Oct. 1910 - 903 Sept . 1916; Mar. 1956-P

12322500 Silver Bow Creek above Black- (8) Oct. 1983-P C1*) tail Creek, at Butte.

12322800 Blacktail Creek near Butte 14.7 Oct. 1983-P (4 )

12323000 Silver Bow Creek below Black- (8) Oct. 1983-P (4 ) tail Creek, at Butte.

12323770 Warm Springs Creek 'at Warms 163 Oct. 1983-P (*+) Springs.

12324200 Clark Fork at Deer Lodge 1,005 Oct. 1978-P 365

12324590 Little Blackfoot River near 398 Oct. 1972-P 190 Garrison.

12324680 Clark Fork at Gold Creek 1,704 Oct. 1977-P 723

12325500 Flint Creek near Southern Cross 52.6 O^ct. 1940-P 29.8

12329500 Flint Creek at Maxville 208 Aug. 1941-P 102

12330000 Boulder Creek at Maxville 71.3 Apr. 1939-P 48.3

12331900 Clark Fork near Clinton 2,629 June 1979-P (4 )

12332000 Middle Fork Rock Creek near 123 Sept . 1937-P 124 Philipsburg.

12334510 Rock Creek near Clinton 885 Oct. 1972-P 604

12335500 Nevada Creek above Reservoir, 116 Apr. 1939-P 38.7 near Finn.

12339450 Clearwater River near Clear- 345 Oct. 1974-P 305 water.

27 Table 1. Selected hydrologic data for stations in the surface-water program Continued

Drainage Mean annual Station area Period of flow 1 No. Station name (mi2 ) record (ft^/s)

12340000 Blackfoot River near Bonner 2,290 July - Nov. 1,651 1898; Mar. 1899 - Sept. 1901; May 1903 - Jan. 1905; Mar. - Oct. 1905; Oct. 1939-P

12340500 Clark Fork above Missoula 5,999 Mar. 1929-P 3,050

12342500 West Fork Bitterroot River 317 Apr. 1941-P 290 near Conner.

12344000 Bitterroot River near Darby 1,049 Apr. 1937-P 931

12353000 Clark Fork below Missoula 9,003 Oct. 1929-P 5,541

12354500 Clark Fork at St. Regis 10,709 Oct. 1910-P 7,583

12355000 Flathead River at Flathead, 427 Mar. 1929-P 947 British Columbia.

12355500 North Fork Flathead River 1,548 Sept. 1910 - 2,989 near Columbia Falls. Sept. 1917; Apr. 1929 - Feb. 1935; June 1935-P

12358500 Middle Fork Flathead River 1,128 Oct. 1939-P 2,935 near West Glacier.

12362500 South Fork Flathead River near 1,663 Sept. 1910 - 3,564 Columbia Falls Jan. 1911; Feb. 1911 - Sept. 1913; Oct. 1913 - Aug. 1916; Apr. 1923 - Nov. 1924; May - Nov. 1927; May 1928-P

See footnotes at end of table.

28 Table 1. Selected hydrologic data for stations in the surface-water program Continued

Drainage Mean annual Station area Period of flow 1 No. Station name (mi2 ) record (ft3 /s)

12363000 Flathead River at Columbia 4,464 May 1922 - 9,737 Falls. Sept. 1923; June 1982-P

12365000 Stillwater River near White- 524 Oct. - Nov. 1930; 339 fish. Dec. 1930 - Sept. 1950; Oct. 1972-P

12366000 Whitefish River near Kalispell 170 July - Nov. 1928; 193 Apr. 1929 - Sept. 1950; Oct. 1972-P

12369200 Swan River near Condon 69.1 Oct. 1972-P 166

12370000 Swan River near Bigfork 671 Oct. 1910 - 1,170 May 1911; Apr. 1922-P

12370900 Teepee Creek near Poison 2.18 Oct. 1982-P (">

12372000 Flathead River near Poison 7,096 July 1907-P 11,720

12374250 Mill Creek above Bassoo Creek, 19.6 Oct. 1982-P (**) near Niarada.

12374800 Cromwell Creek near Niarada 14.3 Oct. 1982-P

12375900 South Fork Crow Creek near 7.57 Oct. 1982-P Ronan.

12377150 Mission Creek above reservoir, 12.4 Oct. 1982-P near St. Ignatius.

12381400 South Fork Jocko River near 56.0 Oct. 1982-P Arlee.

12383500 Big Knife Creek near Arlee 6.88 Aug. 1910 - Sept. 19162 Oct. 1982-P

12387450 Valley Creek near Arlee 15.3 Oct. 1982-P

29 Table 1. Selected hydrologic data for stations in the surface-water program Continued

Drainage Mean annual Station area Period of flow 1 No. Station name (mi ) record (ft3 /s)

12388400 Revais Creek below West Fork, 26.3 Oct. 1982-P near Dixon.

12388650 Camas Creek near Hot Springs 4.46 Oct. 1982-P

12388700 Flathead River at Perma 8,795 Oct. 1983-P

12389000 Clark Fork near Plains 19,958 Oct. 1910-P 20,010

12389500 Thompson River near Thompson 642 Mar. - Sept. 1911; 476 Falls. Oct. 1911 - Sept. 1916; Apr. 1956-P

12390700 Prospect Creek at Thompson 182 Apr. 1956-P 257 Falls.

12391400 Clark Fork below Noxon Rapids 21,833 May 1960-P 21,350 Dam, near Noxon.

1 Average as of 1983 Water Year. ^ Seasonal records only. 3 Prior to operation of St. Mary Canal. 4 Less than 5 years of annual record. 5 Adjusted for flow in Four Horns Canal since 1973. f-j6 Prior to Fort Peck Lake reaching operational level. 1 After operational level in Fort Peck Lake was reached. 8 Not applicable. Anaconda Company has constructed numerous holding ponds above gage.

30 Table 2. Data use, funding, and data availability for stations in the surface-water program

[Frequency of data availability: A, annual; P, provisional; T, telemetry equipment]

Uses Funding

>> Fre­ cfl 4-> 60 0 e x o C c c o w H C cfl CO CO quen­ rH 60 H Cfl O 60 60 4-1 O H 4-1 rH -H JS rH S M K K Sta­ Regiona Legal Plannin Projec Federa 60 60 Other cy of hydrolo Hydrolog system cbligati anddesi operati Hydrolog forecas Water-qua monitor Researc Other progra O O tion K )-i non-fede data CX CX No. avail- ity

05014500 1,2 1,2 3 4 * A

05016000 5 6 A,P

05017500 1 7 6 A

05018500 8 7 9 6 A.P.T

05020500 8 7 10 11 6 A.P.T

06016000 1 1 12 4,13 14 15 A,P

06018500 1 12 13 14 * A.P.T

1. General hydrologic knowledge and definition of long-term trends. 2. Hydrologic bench-mark station. 3. Inflow to Lake Sherburne. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 5. Outflow from Lake Sherburne. 6. International Joint Commission (U.S. Department of State). 7. Operation of St. Mary-Milk River Project. 8. International gaging station, Boundary Waters Treaty of 1909, Article VI. 9. Forecasting inflow to Fresno Reservoir. 10. Flood forecasting - National Weather Service. 11. Water-cuality monitoring station, NASQAN program. 12. Operation of East Bench Irrigation Project. 13. Operation of Missouri River system. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 15. U.S. Btreau of Reclamation.

31 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding

Fre­ >! rH en 4-1 B g quen­ >* O C O 10 H 60 cd »-( M .H 60 H M O 60 60 4-> O H *J .H C jr H 6 VJ VJ 01 CD Sta­ cd O 60 a rH -H C -H O -H CD W tfl -H o M cfl wj 60 60 .a -a cy of C rH 0 0) cd 4-1 H M 01 4-1 O tfl a n VJ 01 M i-i 0 o 4-1 01 tion O O rH 4J 60 cd C 0) T-) tfl t-H (J o- o td 0) 60 O M-l data H M O M 01 60 C T3 0 H O 0) i *-> CD 4J t3 0 ex ex 1 No. t>0 T3 l-i >-, i-J -H cd M 01 >-i M VJ -H w O avail- 01 >v t3 M rH rH T3 PM CX T3 0 OJ C OJ fa CX < (X Crf A J3 &, a O >~.>4-l J.J O ctf fa 8 abil­ £ O tfl pa g « o 0 u ity

06019500 1 16 4 17 A

06020600 1,13 10 14 17 A

06024590 1 1,18 17 A

06025500 1 13 13 4,10 14 17 A.T

06035000 1 16 14 17 A

06036650 1 13 13 14 19 A.T

06036905 1 20 20 * A.P

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 10. Flood forecasting - National Weather Service. 13. Operation of Missouri River system. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 16. Reservoir-management station. 17. Montana Department of Natural Resources and Conservation. 18. Water-use studies by U.S. Forest Service. 19. Montana Department of Fish, Wildlife and Parks. 20. Water-quality-monitoring station - Geological Survey geothermal study.

32 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding Fre­ 4_j E rH O d d o en H 60 n) n) n) quen­ rH 60 H CO o 6C 60 4-1 O H 4-1 rH d rH E S-i Sta­ tfl O 60 E rH -H C -H 0 -H 60 en n) -H 6 n) n) 60 60 U 01 cy of d rH O 01 H CO 01 4-1 o n) 3 VJ 01 0 o CD T3 tion 0 0 60 tfl d oi rH O 0- O n) 01 60 J3 01 data H VJ o en 01 60 O VJ O 01 1 4-1 01 4-1 ^ o a a. 4-» >4-l No. 60 T3 VJ >, n) VJ 01 V-l *H en O 01 V4 O 1 avail- 01 >, ^3 en rH rH T3 T3 O oi d 01 fe a a C <4 A PH C o >~. M-I 4-1 O fe o o abil­ 31 0 EG o o d n) s u ity

06037000 1 20 20 * A,P

06037500 1 1,16 20 14,20 * A,P

06038500 21 16,21 4 14 22 A,T

06038800 16 14 19 A,T

06040300 1 1,18 17 A

06041000 1,21 13,16 4 14 22 A,T 21

06050000 1 18,23 16 4 17 A

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 13. Operation of Missouri River system. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 16. Reservoir-management station. 17. Montana Department of Natural Resources and Conservation. 18. Water-use studies by U.S. Forest Service. 19. Montana Department of Fish, Wildlife and Parks. 20. Water-quality monitoring station - Geological Survey geothermal study. 21. Federal Energy Regulatory Commission hydropower licensing requirements. 22. Montana Power Company. 23. Used by State of Montana for water-rights administration.

33 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding > , Fre­ Cfl jj cd quen­ ydrologic Project ydrologic ter-quali n Sta­ Federal FAprogra 60 Regional hydrology systems Legal bligation Planning nddesign operation forecasts onitoring Research program o Other on-federa cy of tion Other !-i data p- avail- No. a o abil­ o cd cd g o c w 35 u ity

06052500 1 1,13,18 16 4,10 14 24 A,T

06054500 1 1,13,23 16 4,10 11 14 * A.P.T

06061500 1 23,25 17 A

06062500 1 1,18 26 A

06066500 21,23 16,21 14 27 22 A

06076690 1,13 14 27 19 A,T

06078200 1,13 16 10 14 24 A,T

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 10. Flood forecasting - National Weather Service. 11. Water-quality-monitoring station, NASQAN program. 13. Operation of Missouri River system. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 16. Reservoir-management station. 17. Montana Department of Natural Resources and Conservation. 18. Water-use studies by U.S. Forest Service. 19. Montana Department of Fish, Wildlife and Parks. 21. Federal Energy Regulatory Commission hydropower licensing requirements. 22. Montana Power Company. 23. Used by State of Montana for water-rights administration. 24. U.S. Army Corps of Engineers. 25. Water-use studies by Montana Department of Health and Environmental Sciences. 26. City of Helena. 27. Streamflow-data request for recreational planning and river floating.

34 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding

>^ Fre­ >i U c c c u to H bO to to (0 quen­ rH M H to 0 bO bO U 0 H 4-> rH C JZ -H g VJ VJ VJ Sta­ to o oo a r-l !-( C -H U -H bO to tO -H o to 3 ^ VJ QJ VJ VJ o 0 UJ -O tion O O iH 4J bO (0 C a -a 0 VJ o -, J -H to VJ U l-i VJ VJ -H 01 O QJ 1-J O 1 avail- , a to rH rH T3 PL| CX a o IU C QJ PK CX < ex c OS X! >. ,n PL, C o >,M-I 4-) O od PK 0 o abil­ rti o to » to 13 O 0 c CJ ity

06088300 I 28 28 * A

06088500 1 28 28 * A

06089000 1,13,21 21 10 29 22 A,T

06090300 13,21, 16,21 14 22 A,T 23

06090800 1 1,13,23 4,10 LI 27,30 * A,T

06091700 31 31 32 33 A

06093200 1 31 16 4 33 A

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 10. Flood forecasting - National Weather Service. 11. Water-quality monitoring station, NASQAN program. 13. Operation of Missouri River system. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks 16. Reservoir-management station. 21. Federal Energy Regulatory Commission hydropower licensing requirements. 22. Montana Power Company. 23. Used by State of Montana for water-rights administration. 27. Streamflow data requests for recreational planning and river floating. 28. Monitor return flow from Greenfields Irrigation project. 29. Water-quality monitoring station, other. 30. Wild and Scenic River management. 31. Hydrologic activities - U.S. Bureau of Indian Affairs. 32. Operation of Two Medicine Irrigation project. 33. U.S. Bureau of Indian Affairs.

35 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding

>> Fre­ w 4-1 e 6 rH >> u ti c u to H 60 cfl cfl Cfl rH 60 H (0 0 t>0 60 4J O H W rH C f. P U U quen­ Sta­ « 0 60 0 rH -rl C -H 0 -rl 60 (0 n) i-l u 1-4 r-\ 6 00 00 u at ti rH O 0) cfl u H W 0) 4.J O «5 3 U u 0) CO Cfl O 0 0) rrj cy of i > nj tion 0 0 r-( 4J 00 nj C 0) rH O cr o cfl X U U U u data H U o to 0) 60 C T) 0 U O 0) 1 4J 01 4-J a)a o60 (X ex 4J H-l 60 T3 r< >. fJ -H tO t-i (U U -rl to O O 1 avail- No. 0) >% a w rH T) a, o. O O 0) C 0) 0) P <3 a c 0! .C X J3 a, c 0 £ "^ *J 0 od PM O^ fe o o X o ed 5 e o o c abil­ DS u ity

06099000 1 31 4 33 A

06099500 1 1,31 13,16 4,10 * A,P,T

06101500 13 13,16 11 15 A,T

06101560 23 17 A

06108000 1,13 10 * A,T

06109500 1 1,13 4,10 11 14 27,30 24 A,P,T

06115200 1 1,13 16 4,10 11,34 14 27,30 * A,T

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 10. Flood forecasting - National Weather Service. 11. Water-quality monitoring station, NASQAN program. 13. Operation of Missouri River system. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 15. U.S. Bureau of Reclamation. 16. Reservoir-management station. 17. Montana Department of Natural Resources and Conservation. 23. Used by State of Montana for water-rights administration. 24. U.S. Army Corps of Engineers. 27. Streamflow data requests for recreational planning and river floating. 30. Wild and Scenic River management. 31. Hydrologic activities - U.S. Bureau of Indian Affairs. 33. U.S. Bureau of Indian Affairs. 34. Sediment-transport monitoring station.

36 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding

Fre­ ^ quen­ S Sta­ X O c C c O en H OO n) n) n) cy of r-H M H en o 00 bO u o H 4-1 rH C rH B S-i M M tion n) r-H O cr o n) JC OJ bO l-i S-i JC OJ avail- H S-i o en OJ bO C 13) O S-l O 01 1 4-1 01 4J T3 O O. o. 4-> M-l bOT3 S-i >i nJ -H n) S-l 01 S-i S-i S-i -H en o OJ S-i 0 1 abil­ 0> ^ T3 en rH rH T3 OH Q. 13) 0 0) (C 01 U-, Q. , & P-i C O >, M-l 4J O Pi fo O o ity 3C O T) PC rt B O O c D: U

06120500 1 1,25 4,10 14 17 A,T

06126470 35 35 17 A

06126500 1,24 10 14 17 A,T

06127500 1,25 17 A

06130500 1,23, 13,16 10 11,34 14 17 A 24,25

06131000 1 1,15,23 10,24 29 * A,T

06131120 36 36 A

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 10. Flood forecasting - National Weather Service. 11. Water-quality-monitoring station, NASQAN program. 13. Operation of Missouri River system. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 15. U.S. Bureau of Reclamation. 16. Reservoir-management station. 17. Montana Department of Natural Resources and Conservation. 23. Used by State of Montana for water-rights administration. 24. U.S. Army Corps of Engineers. 25. Water-use studies by Montana Department of Health and Environmental Sciences. 29. Water-quality monitoring station, other. 34. Sediment-transport monitoring station. 35. Baseline hydrologic information-regional coal studies. 36. Montana Department of State Lands.

37 Table 2.--Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding

Fre­ quen­ cn 4J 6 S rH Sta­ O c c C O {/) H 60 j., n) n) nj cy of rH 60 H cn o (50 60 4J O H J-J rH C rH S rJ i-i tion n) O W) S rH -H C -H O -H 60 W nj -rt u nj RJ 60 60 M > rJ "H cfl l-j CD j_j ^ I-J -rt cn 0 Q) M O 1 abil­ 0) >, 13 i/1 rH < 1 "O Pu D -a o 0) C 0) tn £X <3^ a. C PU C O 4J O o o ity « o n) P3 n) B CD o c

06131200 25 36 37 A

06132000 1,23 13,16 4 11 14 * 24 A

06132200 1,23 7 4 6 A

06133000 1,23 8 7 4 29 6 A,P

06133500 1,23 8 7 4 6 A,P,T

06134000 1,23 8 7 4 29 6 A,P,T

06135000 1,23,38 8 7 4,9 29 6 A,P,T

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 6. International Joint Commission (U.S. Department of State). 7. Operation of St. Mary-Milk River project. 8. International gaging station, Boundary Waters Treaty of 1909, Article IV. 9. Forecasting inflow to Freano Reservoir. 11. Water-quality monitoring station, NASQAN program. 13. Operation of Missouri River system. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 16. Reservoir-management station. 23. Used by State of Montana for water-rights administration. 24. U.S. Army Corps of Engineers. 25. Water-use studies by Montana Department of Health and Environmental Sciences. 29. Water-quality monitoring station, other. 36. Montana Department of State Lands. 37. U.S. Bureau of Land Management. 38. Milk River natural flow study.

38 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding Fre­ quen­ 4-J a a r-t Sta­ c c C a to H 00 ca ca ca cy of rH 00 o o 00 00 4-1 O H 4J rH C ,c rn a tion ca o H W H C -H O -H 00 U3 ca 1-1 ca ca cao (30 (-1 0) data C rH 60 0 rH 4-1 H 10 OJ 4J o ca a) 0 o -i OJ vj >-i 1-1 -1-1 to o OJ VJ O 1 abil­ 0) >^ T) 0 0) C 0) PM 0. ex C erf ,c TJ en & 0 4-1 O erf o o ity rd 33 ca a o o C o **

06137400 1 23,31 29 33 A

06137570 1 * »*» -^ » 33 A 31

06139500 38 38 33 A,T

06140500 25,38 16 10 24 A

061 *2400 38 38 33 A,T

06145500 1,38 8 38 6 A.P.T

06149500 1,38 8 38 6 A,P

1. General hydrologic knowledge and definition of long-term trends. 2. Hydrologic bench-mark station. 3. Inflow to Lake Sherburne. 6. International Joint Commission (U.S. Department of State). 8. International gaging station, Boundary Waters Treaty of 1909, Article IV. 10. Flood Forecasting - National Weather Service. 16. Reservoir-management station. 23. Used by State of Montana for water-rights administration. 24. U.S. Army Corps of Engineers. 25. Water-use studies by Montana Department of Health and Environmental Sciences. 29. Water-quality-monitoring station, other. 31. Hydrologic activities - U.S. Bureau of Indian Affairs. 33. U.S. Bureau of Indian Affairs. 38. Milk Rivar natural flow study.

39 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding

Fre­ >1 quen­ en 4-1 s t3 rH Sta­ >i O C C o en -quali CO cy of rH OO H W O 00 OO oject ration H 4J toring rH B progra progra VJ tion CD O oo a iH -rl C -H oo en earch VJ CO CO 1-1 cu data C rH O 0) (0 4-i H W O co cu VJ VJ -i O W 0) 00 C id 0 cu 4J Td o 4J U-l M> Td M >, hJ -H R) M -i -H en O 0) >-i O 1 abil­ 0) f*, Td w rH rH T3 a, p. Td 0 0) C Q) fe CX 1 JO IX C o >i U-l 4J O PS P4 0 o ity a O CO M

06151000 1,38 38 6 A

06151500 31,38 38 33 A,T

06154100 1,38 38 10 17 A

06154140 31,39 39 33 A

06154400 1 1,31 33 A

06154410 1 1,31 29 * A

06154490 31,39 39 33 A

1. General hydrologic knowledge and definition of long-term trends. 6. International Joint Commission (U.S. Department of State). 10. Flood forecasting - National Weather Service. 17. Montana Department of Natural Resources and Conservation. 29. Water-quality monitoring station, other. 31. Hydrologic activities - U.S. Bureau of Indian Affairs. 33. U.S. Bureau of Indian Affairs. 38. Milk River natural flow study. 39. Water availability for stock reservoirs.

40 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding Fre­ >' quen­ a B rH Sta­ a c C u w H C>0 n) cfl Cfl cy of -J U1 bO 60 H 4J rH C j~ n) avail- CD bO 0 M a. CX M a) 0 1 abil­ rH P-i CX CX c o 0 ,-Q 0 o o n ity o J

06154500 1,31 29 33 A

06154510 31,39 39 33 A

06155030 1,31 16 10 17 A,T

06164000 1 1,25 8 10 6 A,P,T

06164510 1,23 16 10 29 * A,T

06164590 31 29 33 A

06164615 31 29 33 A

1. General hydrologic knowledge and definition of long-term trends. 6. International Joint Commission (U.S. Department of State). 8. International gaging station, Boundary Waters Treaty of 1909, Article VI. 10. Flood forecasting - National Weather Service. 16. Reservoir-management station. 17. Montana Department of Natural Resources and Conservation. 23. Used by State of Montana for water-rights administration. 25. Water-use studies by Montana Department of Health and Environmental Sciences. 29. Wa'zer-quality monitoring station, other. 31. Hydrologic activities - U.S. Bureau of Indian Affairs. 33. U.S. Bureau of Indian Affairs. 39. Watier availability for stock reservoirs.

41 Table 2. Data, use, funding, and data availability for stations in th3 surface-water program Continued

Uses Funding Fre­ quen­ en 6 6 Sta­ C -qualityWater nl nl cy of Hydrologic O Project Hydrologic Federal J-i j-i non-federal ,-H -r-i monitoring Research program bO bO Other tion Regional hydrology systems Planning anddesign operation forecasts O O data (13 4-> Other J-l j-i bO nJ avail- No. 0) bO CL, d, ,J -H abil­ ,-H < d, ta O ,0 O O ity O U

06164623 31,39 39 33 A

06164630 31 29 33 A

06166000 23,40 29 * A

06169500 2 1,2 39 29 * A

06169600 23,39 39 37 A

06169700 39 39 37 A

06169800 39 39 37 A

1. General hydrologic knowledge and definition of long-term trends. 2. Hydrologic bench-mark station. 23. Used by State of Montana for water-rights administration. 29. Water-quality monitoring station, other. 31. Hydrologic activities - U.S. Bureau of Indian Affairs. 33. U.S. Bureau of Indian Affairs. 37. U.S. Bureau of Land Management. 39. Water availability for stock reservoirs. 40. Bowdoin Lake studies U.S. Fish and Wildlife Service.

42 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding Fre­ quen­ en .u a a rH Sta­ C c H 00 cy of rH 00 drologic O ao ao Project peration drologic orecasts rH C Federal Aprogra prograp n-federa tion 03 0 systems rH -H C -H m -H esearch program Other data C rH a -u H W 3 l-i No. 0 0 00 03 C QJ cr o avail- H M 0) 00 ] -U u 00 T3 ,J -H 03 1-1 -H a abil­ 0) >N rH rH T3 (1) C Crf £i PL, C o JJ 0 erf 0 o ity EC O 03 EC 03 a o o c

06170050 39 39 37 A

06170080 39 39 37 A

06172000 1,23 16 10 17 A

06174000 1 1,23 41 * A

06174500 1,13, 13 10,13 11 24 A,T 23,25

06175000 1 1,23,31 29 33 A

06175540 1 1,23,35 * A

1. General hydrologic knowledge and definition of long-term trends. 10. Flood forecasting - National Weather Service. 11. Water-quality monitoring station, NASQAN program. 13. Operation of Missouri River system. 16. Reservoir-management station. 17. Montana Department of Natural Resources and Conservation. 23. Used by State of Montana for water-rights administration. 24. U.S. Army Corps of Engineers. 25. Water-use studies by Montana Department of Health and Environmental Sciences. 29. Water-quality monitoring station, other. 31. Hydrologic activities - U.S. Bureau of Indian Affairs. 33. U.S. Bureau of Indian Affairs. 35. Baseline hydrologic information - regional coal studies. 37. U.S. Bureau of Land Management. 39. Water availability for stock reservoirs. 41. Willow Creek retention reservoir study - U.S. Bureau of Land Management.

43 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding Fre­ >^ quen­ Sta­ O (3 (3 (3 ^ 00 nj nj nj cy of i 1 00 H tO O 00 oD 4-J 0 i-l (3 .c in e tion Cfl O oo e r-t -H (3 -H O -H oo to nj -H o i-i cfl nj 6D W data C i-H O 0) Cfl 4-J ^ W (U 4-J O T) I-l OJ 0 0 0) T) No. 0 0 i 1 4-J 00 Cfl (3 0) i-l Cfl i-l O cr o Cfl OJ 00 avail- O I-l O 0) 1 4-1 0) 4-J *u o 4-J (-i-l 6DT3 hJ -r-f nj U 0) >-l -^ O OJ VJ abil­ 'O i» i 1 'd A-4 ft T) 0 OJ (3 0) f*4 D. *3j 0 4-1 O a; [T-I 0 o ity ffi o ct ffi nj 6 O O (3 fc^* U

06176500 1 1 29 33 A

06177000 13,31 13 29 14 24 A,T

06177400 42 42 36 A

06177500 1 1,35 35 37 A

06177650 35 35 36 A

06177700 42 42 36 A

06177825 1,35 35 37 A

1. General hydrologic knowledge and definition of long-term trends. 13. Operation of Missouri River system. 14. Fisheries habitat research conducted by Montan i Department of Fish, Wildlife and Parks. 24. U.S. Army Corps of Engineers. 29. Water-quality monitoring station, other. 31. Hydrologic activities - U.S. Bureau of Indian Affairs. 33. U.S. Bureau of Indian Affairs. 35. Baseline hydrologic information - regional coal study. 36. Montana Department of State Lands. 37. U.S. Bureau of Land Management. 42. Small drainage basin index station - Montana Department of State Lands.

44 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding Fre­ quen­ Sta­ o en ator-quality cy of Hydrologic obligations Project H 4-1 monitoring Federal OFAprogram oopprogram non-federal tion Regional hydrology systems Legal Planning anddesign operation 00 CO program Other data O tfl P.esearch Other No. H 0 avail- O CD t-i VJ abil­ T3 0 >, 14-1 ity K """* u

06178000 1,31,43 43 14 17 A,T

06178500 1,31,43 43 14 17 A,T

06181000 1,31 14 33 A

06181995 1 29 6 A

06183450 1,31 16 29 * A

06185110 23,31 29 33 A

06185500 1,13, 13,16 10 11 24 A,P,T 23,25

1. General hydrologic knowledge and definition of long-term trends. 6. International Joint Commission (U.S. Department of State). 10. Flood forecasting - National Weather Service. 11. Water-quality monitoring station, NASQAN program. 13. Operation of Missouri River system. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks, 16. Reservoir-management station. 17. Montana Department of Natural Resources and Conservation. 23. Used by State of Montana for water-rights administration. 24. U.S. Army Corps of Engineers. 25. Water-use studies by Montana Department of Health and Environmental Sciences. 29. Water-quality monitoring station, other. 31. Hydrologic activities - U.S. Bureau of Indian Affairs. 33. U.S. Bureau of Indian Affairs. 43. Poplar River bilateral monitoring committee.

45 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding Fre­ >. quen­ 4J a c Sta­ c cy of Hydrologic o Project Hydrologic ater-quali Federal Regional hydrology iH -H anddesign OFAprograi oopprograi tion systems cfl 4J Planning operation forecasts monitoring Research program non-federa data 60 Cfl Other Other avail- No. 01 60 iJ -H abil­ iH ^3 ity O 3 u

06186500 1 1 4 20 20 * A

06187550 1 20 20 * A

06191500 1 1,13,23 4,10 20 14,20 27 24 A,P,T

06191800 1 1,14,23 14 14 19 A

06192500 1 1,13,23 4,10 11 14 27 24 A,P,T

06195600 1,23 4,10 14 19 A,T

06200000 1 1,13,23 4,10 14 17 A,T

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 10. Flood forecasting - National Weather Service. 11. Water-quality-monitoring station, NASQAN program. 13. Operation of Missouri River system. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 17. Montana Department of Natural Resources and Conservation. 19. Montana Department of Fish, Wildlife and Parks. 20. Water-quality-monitoring station - Geological Survey geothermal study. 23. Used by State of Montana for water-rights administration. 24. U.S. Army Corps of Engineers. 27. Streamflow data requests for recreational planning and river floating.

46 Table 2.--Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding Fre­ >, quen­ Sta­ rH >, O c c c u w H 00 tfl « « cy of rH (1C H CO 0 bO bO 4J O rH 4J rH C f. rH g !-i n u tion tfl O 00 e rH -rH C -H O -H bO W CO -rH o r-l ts ca 60 bO data d -H O (U CO 4-1 H W 0) 4-1 O tfl P r-l r-l (1) M !-i 0 O (U 13 No. 0 0 rH 4J 00 Cfl C CU n tfl rH O CT O rt (U bO S-i J2 (U avail­ rH ^ CU bO d T3 O S-i O tU 1 4-1 0) 4J T3 0 a a 4-> m 00 T3 M >i KJ -H (fl M (0 J-i H !-l -rH w O i T3 tn -H r-t 13 c^ a T3 O QJ C 0) PM CX <; ex c: & J= >i ,£> C^ C 0 >i M-( 4-1 O a! Pn o 0 ity ffi 0 tfl K 5 s 0 o c > o

06202510 44 14 19 A,T

06204050 1,23 16,21 4 14 22 A

06205000 1 1,13,23 4,10 14 24 A,T

06207500 1 1,23,25 4,10 34 14 17 A,T

06208800 1,23 45 34 14 17,46 A

06211000 1 16 4 17 A

06211500 1 16 4 17 A

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 10. Flood forecasting - National Weather Service. 13. Operation of Missouri River system. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 16. Reservoir-management station. 17. Montana Department of Natural Resources and Conservation. 19. Montana Department of Fish, Wildlife and Parks. 21. Federal Energy Regulatory Commission hydropower licensing requirements. 22. Montana Power Company. 23. Used by State of Montana for water-rights administration. 24. U.S. Army Corps of Engineers. 25. Water-use studies by Montana Department of Health and Environmental Sciences. 34. Sediment-transport monitoring station. 44. Baseline hydrologic information - Stillwater Complex study. 45. Yellowstone River Compact - Appendix A. 46. Wyoming State Engineer.

47 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding

Fre­

tn 4J quen­ Sta­ 0 c C c O tfl H 60 cy of rH 60 H tfl o 60 00 4J 0 H 4J rH C j.. rH 6 rH -H a -H tion cd O 60 E U -rl 60 '/) 18 -rl u 58 58 60 60 0) data C rH O -i >-. i-J -H cfl j_i CD ^-i *H cn O HI >J 4J 1 abil­ 0) >-, T3 cn rH I-H -a T3 0 0) C (U fe CL o c OJ rC o K"^ ui O OS O o ity sa 0 Cfl cd 6 O o s 0

06212500 16 16 17 A

06214500 1 1,13,23 13 4,10 11 14 14 24 A,P,T

06216000 1 1,25,31 * A

06216900 1,31 * A

06287000 1,23 16 14 15 A

06289000 1 1,23,31 4 * A

06290000 1 1,23,31 33 A

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 10. Flood forecasting - National Weather Service. 11. Water-quality monitoring station, NASQAN program. 13. Operation of Missouri River system. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 15. U.S. Bureau of Reclamation. 16. Reservoir-management station. 17. Montana Department of Natural Resources and Conservation. 23. Used by State of Montana for water rights administration. 24. U.S. Army Corps of Engineers. 25. Water-use studies by Montana Department of Health and Environmental Sciences. 31. Hydrologic activities - U.S. Bureau of Indian Affairs. 33. U.S. Bureau of Indian Affairs.

48 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding Fre­ ^ quen­ Sta­ e ater-qualil cy of Hydrologic o Project Hydrologic Federal OFAprogran oopprogran non-federal tion Regional hydrology systems .a 1 -rtj-j Planning anddesign operation forecasts monitoring Research program Other data Other avail- No. 0 Mcfl >J -H abil­ i-t J ity O 3 u

06290500 1,23,31 4 * A

062 J1000 1,23,31 33 A

062^1500 1 1,23,31 16 33 A

06294000 1,23,31 45 4,10 17,46 A

06294500 1,13,23 45 13 10 11 14 17,46 A

06294600 42 42 36 A

06294940 1,23,35 35 * A,T

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 10. Flood forecasting - National Weather Service. 11. Water-quality monitoring station, NASQAN program. 13. Operation of Missouri River system. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 16. Reservoir-management station. 17. Montana Department of Natural Resources and Conservation. 23. Used by State of Montana for water-rights administration. 31. Hydrologic activities - U.S. Bureau of Indian Affairs. 33. U.S. Bureau of Indian Affairs. 35. Baseline hydrologic information - regional coal studies. 36. Montana Department of State Lands. 42. Small drainage basin index station - Montana Department of State Lands. 45. Yellowstone River Compact - Appendix A. 46. Wyoming State Engineer. Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding Fre­ >> e quen­ Sta­ >> a c C C a w H OO it! n) tc cy of rH 00 H tn o no oo 4-1 O H JJ rH C f. rH S P t-i t- tion a) 4J t3 0 O. o. W "4- oo -a M i>i rJ -H n) t-i a) t-i M tJ -H tn O a) M 0 1 abil­ a) >> a tn rH rH T3 PH Cu a o a) c a) fn a. < a. q erf £ >^ ^a cu c 0 >->ii-i JJ O cd tM 0 c ity 0 n) EC n) B O 0 c S 0

06294950 1 1,47 * A,T

06294995 1,25 35 48 * 17 A

06295000 1,13, 15 A 23,25

06295100 42 42 36 A

06295113 25,31 36 * A

06295250 1,31,48 25,35 48 33 A

06296003 25,48 35 48 17 A

1. General hydrologic knowledge and definition of long-term trends. 13. Operation of Missouri River system. 15. U.S. Bureau of Reclamation. 17. Montana Department of Natural Resources and Conservation. 23. Used by State of Montana for water-rights administration. 25. Water-use studies by Montana Department of Health and Environmental Sciences. 31. Hydrologic activities - U.S. Bureau of Indian Affairs. 33. U.S. Bureau of Indian Affairs. 35. Baseline hydrologic information - regional coal studies. 36. Montana Department of State Lands. 42. Small drainage basin index station - Montana Department of State Lands. 47. Inventory of potential Yellowstone River offstream storage basin. 48. Cumulative hydrologic impact assessment - Office of Surface Mining.

50 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding Fre­ quen­ j_) 6 6 Sta­ o c d c: o H 00 ,- rt rt rt cy of rH 00 H (fl 00 61 -u o r-t tn rH C rH S tion rt O oo 6 rH !-! C -H 0 -r-t oo -u (d -r-t o rt rt 60 00 M (U data C! rH rt -u i-l (fl £U 4_) o w a) o a) -a o 0 < > n) o No. O O rH -U 60 n) C 0) I 1 CTj cr o rt a) oo j3 a) avail- H >-i O en (1) 6C O M o o I j-i 01 T3 O o. o. OO T3 >-i ,> . rt >-i (U M (U o a) u O 1 abil­ 0) 5^ «^ rjj rH rH T3 P-i P T3 M a) c a) o. c oi x: O-i C O >-, O -u o o 0 ity ^ O n) PC H-i rt 6 o o u

06296100 1 42 42 36 A

06306100 1,35 35 48 36 A

06306300 1 1,23,35 16 10 35 14,48 17 A,T

06306950 42 42 36 A

06307500 1,23,35 16 4,10 35 48 17 A,T

06307528 1,35 35 * A

06307600 1,23,35 35 14 37 A

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 10. Flood forecasting - National Weather Service. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 16. Reservoir-management station. 17. Montana Department of Natural Resources and Conservation. 23. Used by State of Montana for water-rights administration. 35. Baseline hydrologic information - regional coal studies. 36. Montana Department of State Lands. 37. U.S. Bureau of Land Management. 42. Small drainage basin index station - Montana Department of State Lands. 48. Cumulative hydrologic impact assessment - Office of Surface Mining.

51 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding Fre­ >~, e quen­ Sta­ >~, CJ d d d o tn H OO 3 n) n) cy of r-l 60 H M 0 60 60 4-> 0 H 4J r-l d £ r-l 6 (-1 ]-i )-. tion n) o Ml 6 r-t -H d -H O -H oo tn nj -H U )-. n) n) 50 00 )-i -l (U (-1 (-1 O 0 0) T3 No. o o rH 4-1 so n) d ~, T3 UJ r-l r-l -O PM O, T3 0 a) d a) fe ex < ex oi ,1: >, ,£J PL. d 0 >~, U-l 4-> 0 ai PH 0 0 ity ffi o n) ffi 5 6 o 0 d > o

06307616 23,31 31,35 14 * A

06307717 18,35 35 14 36 A

06307740 1,35 35 14 36 A

06307830 23,35 14 48 17 A

06308400 1,35 35 14 36 A

06308500 1,13, 45 10 11,34 14 * 17,46 A,P,T 23,35 35

06309000 1 1,13, 4,10 14 24 A,P,T 23,25

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 10. Flood forecasting - National Weather Service. 11. Water-quality monitoring station, NASQAN program. 13. Operation of Missouri River system. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 17. Montana Department of Natural Resources and Conservation. 18. Water-use studies by U.S. Forest Service. 23. Used by State of Montana for water-rights administration. 24. U.S. Army Corps of Engineers. 31. Hydrologic activities - U.S. Bureau of Indian Affairs. 34. Sediment-transport-monitoring station. 35. Baseline hydrologic information - regional coal studies. 36. Montana Department of State Lands. 45. Yellowstone River Compact - Appendix A. 48. Cumulative hydrologic impact assessment - Office oi Surface Mining.

52 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding Fre­

4-1 |3 quen­ Sta­ o c O 03 r-quali prograi prograi cy of rH OO H CO o anning design roject sration H 4-1 itoring ederal -federa tion n) o 00 g rH -H oo co search rogram Other data ti rH O 0) rt 4-1 O 03 0) No. o o rH 4-1 oo n) H O ft avail- H SJ O m > tJ -H M i-i o abil­ Q) P*~> TJ CO rH I | *TJ CM ex T3 O OJ G OJ fa pi <£ ex c Pi A PH C o X^ 4-» O Pi o o ity ffi O rt c$ 6 o o c s CJ

06309075 I 1,25 17 A

06324500 1,23,35 4 34 14 * 17 A,T

06324710 1,35 34 * A,T

06326300 1,23,35 35 17 A

06326500 I 1,13,23 45 10 11,34 14 * 17,46 A,P,T 25,35

06326600 1,23 35 17 A

06326952 42 42 36 A

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 10. Flood forecasting - National Weather Service. 11. Water-quality-monitoring station, NASQAN program. 13. Operation of Missouri River system. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks, 17. Montana Department of Natural Resources and Conservation. 23. Used by State of Montana for water-rights administration. 25. Water-use studies by Montana Department of Health and Environmental Sciences. 34. Sediment-transport monitoring station. 35. Baseline hydrologic information - regional coal studies. 36. Montana department of State Lands. 42. Small dr.linage basin index station - Montana Department of State Lands. 45. Yellowstjne River Compact - Appendix A. 46. Wyoming State Engineer.

53 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding

Fre­ g ^ e cd i i quen­ Sta­ o a G G O U) H 00 cd In d cy of 60 00 4-1 O H 4-1 H G rC -H S 00 VJ tion cd o 60 g H -H C -H O -H 60 U) Cd -H 0 1-1 cd cd 60 o VJ Q) data H CO o cd 3 l-i 1-1 0) 1-1 u o 1H a) -a No. 0 0 H 4-1 00 cd G CD r-l O cr* o cd .c 0) 00 1-1 ex 42 (D avail- o u) > i-3 -H 1-1 0) >-i -H U) O 0) VJ abil­ PH O. T) O 4) C (1) O o 43 PM d 0 4-> 0 PS PH 0 O ity O cd PC ^ cd g O U G

06328200 42 42 36 A

06329200 1 1,35 35 * A

06329500 1 1,13, 16 4,10 11,34 14 24 A.P.T 23,25

06336447 42 42 36 A

12301300 1 1 4 14 24 A

12301933 1,25,49 16 4 29 14 24 A,T

12302055 1 1 4 14 24 A

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 10. Flood forecasting - National Weather Service. 11. Water-quality-monitoring station, NASQAN program. 13. Operation of Missouri River system. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 16. Reservoir-management station. 23. Used by State of Montana for water-rights administration. 24. U.S. Army Corps of Engineers. 25. Water-use studies by Montana Department of Health and Environmental Sciences. 29. Water-quality monitoring station, other. 34. Sediment-transport-monitoring station. 35. Baseline hydrologic information - regional coal studies. 36. Montana Department of State Lands. 42. Small drainage basin index station - Montana Department of State Lands. 49. Operation of upper Columbia River system.

54 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding

Fre­ >, quen­ CO 4J B Sta­ >, O H 4J in a rH B >J >j tion cd O oo a rH 1-1 a 1-1 CJ -H M cn Cd -H u >j cd cd bO oO >J 0) data O QJ Cd 4J H cn QJ 4J )-i 0) d >H < > cd O cd 3 VJ >j >j O o 0) T3 No. O O rH 4-1 bO cd a o> rH CJ cr o cd jC (U OC >j M x: a avail- H >-l O W 0> bO a -a O ^ O ci) 1 4J 0) 4J T3 O cx & 4J M- bO T3 VJ >, nJ -H cd )-l 01 >j (-1 ^ -r-l cn O 0) >-J O 1 abil­ 0> >, T3 M rH r-l T3 CM a T3 O CD C 0) fn D- <: & c Ctf jC ;>-, JD cn a o >, m 4J 0 Pi fn o o ity O cd 3d rt B o o c 5 u

12303000 1 1,49 16 10 14 24 A,P,T

12303100 1 1,18 21 50 A

12303500 1,18 21 4 14 51 A

12304500 \ 1,18,49 4,10 14 24 A,T

12322500 1,25,52 53 A

12322800 1,25,52 53 A

12323000 1,25,52 53 A

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 10. Flood forecasting - National Weather Service. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 16. Reservoir-management station. 18. Water-use studies by U.S. Forest Service. 21. Federal Energy Regulatory Commission hydropower licensing requirement. 24. U.S. Army Corps of Engineers. 25. Water-use studies by Montana Department of Health and Enviromental Sciences. 49. Operation of upper Columbia River system. 50. Pacific Power and Light. 51. Montana Light and Power Company. 52. Baseline hydrologic information - U.S. Enviroraental Protection Agency superfund site. 53. Montana Bureau of Mines and Geology.

55 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding

Fre­ :>, en j-j quen­ Sta­ x O d d d o en H M ^, cfl n3 « cy of rH 00 H en o SO bO 4-1 O H 4-1 rH C! rH 6 tion CO O M 6 rH -H lannin O -H 60 10 er-qua r-J cfl c« &0 &0 »-i OJ data C T-l o CO rH O (U toO r-J ^J J3 0) avail- H >-j o en (U M O M o cu 4J T3 0 CX CX 4-J LM N3 T3 M X nJ -H r-J (U r-J r-J o (U >-J O 1 abil­

12323770 1,18 14 54 19 A

12324200 1,25 14 54 19 A

12324590 1,23, 4 14 54 17 A 25

12324680 1 1,25 14 54 17 A

12325500 1,18, 10 54 19 A 25

12329500 1 21 4 14 22 A,T

12330000 1,18,23 14 17 A

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 10. Flood forecasting - National Weather Service. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 17. Montana Department of Natural Resources and Conservation. 18. Water-use studies by U.S. Forest Service. 19. Montana Department of Fish, Wildlife and Parks. 21. Federal Energy Regulatory Commission hydropower licensing requirements. 22. Montana Power Company. 23. Used by State of Montana for water-rights administration. 25. Water-use studies by Montana Department of Health and Environmental Sciences. 54. Clark Fork reserve flow water study - Montana Department of Fish, Wildlife and Parks.

56 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding

Fre­ ^ 6 tn 4-J 60 cd g ^i quen­ Sta­ ^ o 0 c C U U) r-H -fl o ^ e 60 2 cy of r-H &0 H B) H 60 00 4-J 0 H 4-1 cd i-t cd cd o 60 01 0) tion rt o 60 6 r-H 4-1 C -H U -H 60 W 3 0 cd 0) 0 data C tH O 0) cd cd H Cfl PJ 4-J o cd O4 4-J 0) 0) 60 & 4-1 0) No. O O 60 60 d a) r-H U 1 -H tn 4-1 Td o O ^-t avail- H V4 o to 0) -H C T) O H O 0) !-i C 0) O 0) !-J 60 -d hJ rH n) J_| Q) !-J l-i 0) O ui & C abil­ 01 >> Td to i | *"O P-, CL Td o 0 0 0 0 PL, C O >> U-l cd O c ity sc tfl tc DS

12331900 1 1,18, 4 14 54 17 A 23

12332000 1 10 14 19 A,T

12334510 1 1,18,23 4 14 17 A

12335500 1 1,18,25 16 4 17 A

12339450 1 1,23 4 14,27 17 A

12340000 1 1,23, 4,10 14 27 * A,P,T 25,49

12340500 1,23,25 10 14 27,54 24 A,P,T 49 1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 10. Flood forecasting - National Weather Service. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 16. Reservoir-management station. 17. Montana Department of Natural Resources and Conservation. 18. Water-use studies by U.S. Forest Service. 19. Montana Department of Fish, Wildlife and Parks. 23. Used by State of Montana for water-rights administration. 24. U.S. Army Corps of Engineers. 25. Water-use studies by Montana Department of Health and Environmental Sciences. 27. Streamflow data requests for recreational planning and river floating. 49. Operation of upper Columbia River system. 54.. Clark Fork reserve flow water study - Montana Department of Fish, Wildlife and Parks. Table 2. --Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding

Fre­ en u , i quen­ >^ o a a c a en H 60 cd § cd Sta­ r-l M H en o 60 60 4-1 O H 4-1 -H a ^ -i 6 VJ VJ VJ cy of cd o 60 g T-H -i-l C -r-l O -H eo en cd -i-t a V4 cd cd 60 60 M a) tion C <-t O QJ cd -u H en a) 4-i o cd d M VJ 0) VJ VJ o O QJ -a data o o -H 4-1 60 Cd a ai i ) to -H a cr o cd 43 01 60 V4 VJ 42 0) No. H M O J) O 60 a -a O VJ O 0) 1 4-1 0) 4J -a o a, CL 4-1 4-1 avail- 00 T) VJ >^ n4 -H CO V4 0) VJ M Vi -,-t en O 01 VJ O 1 0) >^ -a en r-l tH -a P-, O. -a o 11 C QJ fn CX <3 & a abil­ Pi J= >^ 42 P-. a o >^^ 4-1 O Pi fe O o M O cd K o O a ity £ e e_>

12342500 1,18 16 4 14 27 17 A

12344000 1 1,18,49 4,10 14 17 A,P,T

12353000 1 1,23, 4,10 11 14,27 55 A.P.T 25,49

12354500 1 1,49 4,10 14,27 * 56 A,P,T

12355000 1 1,18,49 4 11 14 27 6 A

12355500 1 1,18,23 4,10 14 27 * 56 A,P,T 25,49

12358500 1 1,18, 4 14 27 56 A,P,T 25,49

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 6. International Joint Commission (U.S. Department of State). 10. Flood forecasting - National Weather Service. 11. Water-quality monitoring station, NASQAN program. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 16. Reservoir-management station. 17. Montana Department of Natural Resources and Conservation. 18. Water-use studies by U.S. Forest Service. 23. Used by State of Montana for water-rights administration. 25. Water-use studies by Montana Department of Health and Environmental Sciences. 27. Streamflow data requests for recreational planning and river floating. 49. Operation of upper Columbia River system. 55. Montana Department of Health and Environmental Sciences. 56. Bonneville Power Administration.

58 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding Fre­ en 4J rH quen­ >> O 6 c c o to H BO tO to CO Sta­ rH BO H M 0 BO BO 4-> O H 4-1 rH C X! -H 6 )-i VJ I-l cy of CO O oo a rH -H B -H O -i-l BO tO CO -H O >-i CO tO BO BO I-l (1) tion C r-l 0 <1) CO 4J i-l CO (1) 4J O CO 3 M )-i Q) )-i )-i 0 0 (1) 13 data 0 0 rH 4-1 BO B) C 0) r-l Cfl rH O CT 0 to 0) BO )-i )-i J3 (1) No. i-l tJ O M 0) BO C 13 0 M O > hJ -rl CO M tt) 1-4 V-* M -H to O (1) M O 1 (1) >> 13 M r-l rH 13 Pu pi, 13 O 0) C (1) [n P. < ft c abil­ Od J3 >> JQ PM C O >,<4-l 4-> O PM O 0 ac O « ac to B O O c ity & O

12362500 1,18,23 16 4 14 27 15 A,P,T 25,49

12363000 1,18,23 16,21 10 11 14 27 22 A,P,T 25,49

12365000 1 1,25 14 17 A

12366000 1,18,25 14 17 A

12369200 1 1,18 14 19 A

12370000 1 1,18,25 16 4,10 14 56 A,T

12370900 25,57 31 29 56 A

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 10. Flood forecasting - National Weather Service. 11. Water-quality-monitoring station, NASQAN program. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 15. U.S. Bureau of Reclamation. 16. Reservoir-management station. 17. Montana Department of Natural Resources and Conservation. 18. Water-use studies by U.S. Forest Service. 19. Montana Department of Fish, Wildlife and Parks. 21. Federal Energy Regulatory Commission hydropower licensing requirements. 22. Montana Power Company. 23. Used by State of Montana for water-rights administration. 25. Water-use studies by Montana Department of Health and Environmental Sciences. 27. Streamflow data requests for recreational planning and river floating. 29. Water-quality monitoring station, other. 31. Hydrologic activities - U.S. Bureau of Indian Affairs. 49. Operation of upper Columbia River system. 56. Bonneville Power Administration. 57. Small drainage basin index station - Bonneville Power Administration.

59 Table 2. Data use, funding, and data availability for stations in the surface-vater program Continued

Uses Funding

Fre­ CO u r-( quen­ >> o d d d CJ CO H 60 n) nj cti Sta­ r-H 60 H CO 0 60 60 *-> 0 H .u) H d f. rH g IJ i-i V-i cy of CO o 60 g r-H -H d -H O -H bD CO n) -H 0 >j « nj 00 W3 )-J (1) tion d i-i O 01 ctf 4J H CO QJ 4-1 0 fl) 3 H j-j QJ n n o o CD 13 data 0 0 r-H tJ bO cti d QJ r-i Cfl i I CJ cy o n) JZ Q) bO V-i V-i 4H QJ No. H )-l O <0 01 60 d -a 0 t-l O QJ 1 tJ (D u T3 0 ex CX 4-1 M-( avail- so -a )-J >> >J -H cd I-i Q) V-i V-i )-J -H CO O Q) l-i O 1 QJ >> T) co r-H rH 13 OH CX T) 0 QJ d QJ fn CX <; CX d abil­ ai ,d >> .0 OH d O >>M-< .u) O Oi fe 0 o 33 O cd 33 o 0 d S d o ity

12372000 1,23, 16,21 4 22 A,P,T 25,49

12374250 1,25,57 31 29 56 A

12374800 1,25,57 31 29 56 A

12375900 1,25,57 31 29 56 A

12377150 1,25,57 31 29 56 A

12381400 1,25,57 31 29 56 A

12383500 1,25,57 31 29 56 A

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 16. Reservoir-management station. 21. Federal Energy Regulatory Commission hydropower licensing requirements. 22. Montana Power Company. 23. Used by State of Montana for water-rights administration. 25. Water-use studies by Montana Department of Health and Environmental Sciences. 29. Water-quality monitoring station, other. 31. Hydrologic activities - U.S. Bureau of Indian Affairs. 49. Operation of upper Columbia River system. 56. Bonneville Power Administration. 57. Small drainage basin index station - Bonneville Power Administration.

60 Table 2. Data use, funding, and data availability for stations in the surface-water program Continued

Uses Funding Fre­ -qualit> quen­ O gations a tn program program cd Sta­ rH t>0 H tn nning design oject ration H -U ingtor deral cy of cd o egal oo tn earch ogram i-i cu tion O 0) o cd 0) 0) T) data 0 0 ,H j-i -I O f, 0) No. 'H 1-J o tn O 0) jj JJ M-l avail- w) -r) 1-1 > > cd l-i > -a tn ,-1 .H -n PM CX "0 0 0) F^t P< <; Ow ti abil­ fX <""! ^ PM ti O >, n-i u o Pi fj^t o O cd 0 0 K o rd o ity

12387450 1,25,57 31 29 56 A

12388400 1,25,57 31 29 56 A

12388650 1,25,57 31 29 56 A

12388700 1,23, 31 29 14 56 A 25,49

12389000 1 1,23, 16,21 4,10 22 A.P.T 25,49

12389500 1 1,23,25 16,21 4 14 22 A

12390700 1 1,18, 21 4 14 22 A 23,25

12391400 23,25, 16,21 58 A,P 49

1. General hydrologic knowledge and definition of long-term trends. 4. Streamflow forecasts by U.S. Soil Conservation Service based on snow survey data. 10. Flood forecasting - National Weather Service. 14. Fisheries habitat research conducted by Montana Department of Fish, Wildlife and Parks. 16. Reservoir-management station. 18. Water-use studies by U.S. Forest Service. 21. Federal Energy Regulatory Commission hydropower licensing requirements. 22. Montana Power Company. 23. Used by State of Montana for water-rights administration. 25. Water-use studies by Montana Department of Health and Environmental Sciences. 29. Water-quality-monitoring station, other. 31. Hydrologic activities - U.S. Bureau of Indian Affairs. 49. Operation of upper Columbia River system. 56. Bonneville Power Administration. 57. Small drainage basin index station - Bonneville Power Administration. 58. Washington Water and Power Company.

61