DWR Surface Water Stations Map (Statewide) Based on DWR Surface Water Stations
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Geologic Map of the Central San Juan Caldera Cluster, Southwestern Colorado by Peter W
Geologic Map of the Central San Juan Caldera Cluster, Southwestern Colorado By Peter W. Lipman Pamphlet to accompany Geologic Investigations Series I–2799 dacite Ceobolla Creek Tuff Nelson Mountain Tuff, rhyolite Rat Creek Tuff, dacite Cebolla Creek Tuff Rat Creek Tuff, rhyolite Wheeler Geologic Monument (Half Moon Pass quadrangle) provides exceptional exposures of three outflow tuff sheets erupted from the San Luis caldera complex. Lowest sheet is Rat Creek Tuff, which is nonwelded throughout but grades upward from light-tan rhyolite (~74% SiO2) into pale brown dacite (~66% SiO2) that contains sparse dark-brown andesitic scoria. Distinctive hornblende-rich middle Cebolla Creek Tuff contains basal surge beds, overlain by vitrophyre of uniform mafic dacite that becomes less welded upward. Uppermost Nelson Mountain Tuff consists of nonwelded to weakly welded, crystal-poor rhyolite, which grades upward to a densely welded caprock of crystal-rich dacite (~68% SiO2). White arrows show contacts between outflow units. 2006 U.S. Department of the Interior U.S. Geological Survey CONTENTS Geologic setting . 1 Volcanism . 1 Structure . 2 Methods of study . 3 Description of map units . 4 Surficial deposits . 4 Glacial deposits . 4 Postcaldera volcanic rocks . 4 Hinsdale Formation . 4 Los Pinos Formation . 5 Oligocene volcanic rocks . 5 Rocks of the Creede Caldera cycle . 5 Creede Formation . 5 Fisher Dacite . 5 Snowshoe Mountain Tuff . 6 Rocks of the San Luis caldera complex . 7 Rocks of the Nelson Mountain caldera cycle . 7 Rocks of the Cebolla Creek caldera cycle . 9 Rocks of the Rat Creek caldera cycle . 10 Lava flows premonitory(?) to San Luis caldera complex . .11 Rocks of the South River caldera cycle . -
Appendix I - Watershed Tables
Appendix I - Watershed Tables An inventory of major disturbances, Watershed Disturbance Inventory, was completed for this plan revision. Disturbances have been identified and recorded by watershed. Road miles, timber harvest areas, and geologic hazards have been totaled using a Geographical Information System (GIS) to overlay watershed boundaries with these other layers. All disturbances identified have been totaled and for a total for each watershed calculated. The Forest Service recognizes that all disturbances have not been identified for this FEIS. For example, there are nonsystem travelways on the Forest that are not recorded in GIS. Because the plan revision is a large-scale, programmatic analysis, more detailed watershed analyses will be completed at the project level. These site-specific analyses will consider disturbances not covered during the forest plan revision. This appendix contains six tables and one map. They are: Figure l-1: Watersheds of Concern. This map identifies the locations of the watersheds of concern. Table I-1: Reference Stream Reaches. This lists the undisturbed reference stream reaches. This table is used to compare streams in areas of activity with a similar stream in an area with no activity to help determine if impacts are occurring (see water section in Chapter 3 for more detail). Table I-2: Watershed Health Assessment. This is the summary of disturbances and geologic hazard ratings for each watershed on the Forest. This table summarizes disturbances and categorizes watersheds into low, medium, or high "disturbance risk potential" categories. Table I-3: List of Watersheds of Concerns. This table lists watersheds and subwatersheds which have a high disturbance risk potential rating as identified in Table I-2. -
Campground, Mesa Verde National Park Chief Ranger Office, Mesa Verde Wilderness, a 8500 Acre Wilderness Area Located Within Mesa Verde National Park in Colorado
MileByMile.com Personal Road Trip Guide Colorado United States Highway #160 "Cortez to Walsenburg" Miles ITEM SUMMARY 0.0 Cortez, CO The city of Cortez, Colorado, a city in Montezuma County, CO. Cortez is a popular stop for tourists for its close proximity to surrounding attractions such as Mesa Verde National Park, Monument Valley, and the Four Corners. Also here is Parque De Vida, Centennial Park, Southwest Memorial Hospital and the Conquistador Golf Course. Altitude: 6191 feet 2.2 Junction State Route #145 Junction State Route #145 / County Road 27, Conquistador Golf Course, Lakeside Drive to, Denny Lake Park, Denny Lake. Altitude: 6168 feet 3.7 County Road 29 : Totten County Road 29, Totten Lake, a lake located north off United States Lake Route #160. Altitude: 6165 feet 10.3 Entrance : Mesa Verde State Highway #10, Entrance to Mesa Verde National Park, Spruce National Park Canyon Trail, Mesa Verde National Park Headquarters, Ara Morafield Campground, Mesa Verde National Park Chief Ranger Office, Mesa Verde Wilderness, a 8500 acre wilderness area located within Mesa Verde National Park in Colorado. These three small and separate sections of the National Park are located on the steep north and east boundaries and serve as buffers to further protect the significant Native American sites. Unlike most wilderness areas, visitor access to Mesa Verde Wilderness is prohibited. Altitude: 6886 feet 11.3 Access : Mesa Verde RV Access to, Mesa Verde RV Resort, located just off United States Resort Highway #160. Altitude: 6844 feet 18.0 Junction State Route #184 Junction State Route #184, N Main Street. -
Index of Surface-Water Records to September 30, 1967 Part 9 .-Colorado River Basin
Index of Surface-Water Records to September 30, 1967 Part 9 .-Colorado River Basin Index of Surface-Water Records to September 30, 1967 Part 9 .-Colorado River Basin By H. P. Eisenhuth GEOLOGICAL SURVEY CIRCULAR 579 Washington J 968 United States Department of the Interior STEWART L. UDALL, Secretary Geological Survey William T. Pecora, Director Free on application to the U.S. Geological Survey, Washington, D.C. 20242 Index of Surface-Water Records to September 30, 1967 Part 9 .-Colorado River Basin By H. P. Eisenhuth INTRODUCTION This report lists the streamflow and reservoir stations in the Colorado River basin for which records have been or are to bepublishedinreportsoftheGeological Survey for periods through September 30, 1967. It supersedes Geobgical Survey Circular 509. Basic data on surface-water supply have been published in an annual series of water-supply papers consisting of several volumes, including one each for the States of Alaska and Hawaii. The area of the other 48 States is divided into 14 parts whose boundaries coincide with certain natural drainage lines. Prior to 1951, the records for the 48 States were published in 14 volumes, one for each of the parts. From 1951 to 1960, the records for the 48 States were pub~.ished annually in 18 volumes, there being 2 volumes each for Parts 1, 2, 3, and 6. The boundaries of the various parts are shown on the map in figure 1. Beginning in 1961, the annual series ofwater-supplypapers on surface-water supply was changed to a 5-year S<~ries. Records for the period 1961-65 will bepublishedin a series of water-supply papers using the same 14-part division for the 48 States, but most parts will be further subdivided into two or more volumes. -
Appendix D - Biological Diversity Report
Appendix D - Biological Diversity Report This report has been prepared as support for the revision of the 1983 Routt National Forest Land and Resource Management Plan (1983 Plan). Because a forest plan is a programmatic document, this report is not intended to be a full discussion or description of the biological diversity found on the Forest. It is intended to provide background and informational context for the programmatic decisions made and corresponding environmental consequences discussed in the Revised Plan and associated Environmental Impact Statement. Biological diversity refers to "the full variety of life in an area, including the ecosystem, plant and animal communities, species and genes, and the processes through which individual organisms interact with one another and with the environment" (USDA Forest Service 1992a). Conservation of biological diversity has become a concern of many. The Forest Service is charged with providing for the diversity of plant and animal species (36 CFR 219.26). The Forest has adopted a three-part approach to the analysis of biological diversity in support of revising the 1983 Plan. The coarse filter, fine filter, and range of natural variability are each described in individual sections of this document. The first of these, the coarse filter, focuses on the function, composition, and structure of ecosystems. Providing for these parts of the ecosystem as a whole should be adequate to provide for the needs of most species. Thus, the coarse filter is where most species needs are addressed. However, a few species may require special attention due to unique habitat requirements or rarity of species numbers in an area. -
Water Resources Data Colorado Water Year 1985
Water Resources Data Colorado Water Year 1985 Volume 3. Dolores River Basin, Green River Basin, and San Juan River Basin Volume 1. Missouri River Basin, Volume 2. Arkansas River Basin, Colorado River Basin and Rio Grande Basin above Dolores River U.S. GEOLOGICAL SURVEY WATER-DATA REPORT CO-85-3 Prepared in cooperation with the State of Colorado and with other agencies CALENDAR FOR WATER YEAR 1985 1984 OCTOBER NOVEMBER DECEMBER S M T W T F S S M T W T F S S M T W T F S 123456 123 1 789 10 11 12 13 456789 10 2345678 14 15 16 17 18 19 20 11 12 13 14 15 16 17 9 10 11 12 13 14 15 21 22 23 24 25 26 27 18 19 20 21 22 23 24 16 17 18 19 20 21 22 28 29 30 31 25 26 27 28 29 30 23 24 25 26 27 28 29 30 31 1985 J A N U A R Y F E B R U A R Y M A R C H S M T W T F S S M T W T F S S M T W T F S 1 2 3 4 5 1 2 1 2 6 7 8 9 10 11 12 3 4 5 6 7 8 9 3 4 5 6 7 8 9 13 14 15 16 17 18 19 10 11 12 13 14 15 16 10 11 12 13 14 15 16 20 21 22 23 24 25 26 17 18 19 20 21 22 23 17 18 19 20 21 22 23 27 28 29 30 31 24 25 26 27 28 24 25 26 27 28 29 30 31 APRIL MAY JUNE SMTWTFS SMTWTFS SMTWTFS 123456 1234 1 7 8 9 10 11 12 13 5 6 7 8 9 10 11 2345678 14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15 21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22 28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29 30 JULY AUGUST SEPTEMBER SMTWTFS SMTWTFS SMTWTFS 123456 123 1234567 7 8 9 10 11 12 13 4 5 6 7 8 9 10 8 9 10 11 12 13 14 14 15 16 17 18 19 20 11 12 13 14 15 16 17 15 16 17 18 19 20 21 21 22 23 24 25 26 27 18 19 20 21 22 23 24 22 23 24 25 26 27 28 28 29 30 31 25 26 27 28 29 30 31 29 30 Water Resources Data Colorado Water Year 1985 Volume 3. -
USGS-Streamgage-Data-Final.Pdf
Paleoflood Investigations to Improve Peak-Streamflow Regional-Regression Equations for Natural Streamflow in Eastern Colorado, 2015 By Michael S. Kohn, Michael R. Stevens, Tessa M. Harden, Jeanne E. Godaire, Ralph E. Klinger, and Amanullah Mommandi Prepared in cooperation with the Colorado Department of Transportation Scientific Investigations Report 2016–5099 U.S. Department of the Interior U.S. Geological Survey 6 Table 1. Summary of the streamgages used in the regression analysis of natural streams in eastern Colorado, 2015. Paleoflood InvestigationstoImprovePeak-StreamflowRegional-RegressionEquations,EasternColorado,2015 [USGS, U.S. Geological Survey; CDWR, Colorado Division of Water Resources; NDNR, Nebraska Department of Natural Resources; A, drainage area; mi2, square miles; C, amount of soil consisting of clay in basin; %, percent; Eout, elevation of basin outlet; ft, feet; 6P100, mean basin 6-hour, 100-year precipitation; in., inches; S, mean basin slope; Wyo., Wyoming; Nebr., Nebraska; Colo., Colorado; Kans., Kansas; Okla., Oklahoma; N. Mex., New Mexico; Tex., Texas; NA, not applicable] USGS Latitude Longitude Paleo- USGS CDWR NDNR A C E P S streamgage Streamgage name (decimal (decimal flood out 6 100 peaks peaks peaks (mi2) (%) (ft) (in.) (%) number degrees) degrees) data 06655000 Cottonwood Creek at Wendover, Wyo. 42.3258 –104.8764 24 NA NA No 1,960 17.3 4,450 2.59 13.6 06668040 Rabbit Creek near Wheatland, Wyo. 42.2158 –105.2291 20 NA NA No 1.30 20.6 5,650 2.45 14.9 06675300 Horse Creek Tributary near Little Bear, Wyo. 41.4558 –104.8839 21 NA NA No 8.16 12.2 6,240 2.81 7.78 06687000 Blue Creek near Lewellen, Nebr. -
RGNF Draft Record of Decision & Biological Assessment
Draft Record of Decision Village at Wolf Creek Access Project United States Department Final Environmental Impact Statement of Agriculture Forest Service USDA Forest Service Rocky Mountain Region Rio Grande National Forest Divide Ranger District Mineral County, Colorado United States Department of Agriculture United States Forest Service Rio Grande National Forest 1803 West Highway 160 Monte Vista, Colorado 81144 July 19, 2018 Table of Contents Number / Section Page 1.0 Introduction ............................................................................................................................. 1 2.0 Background and Location.............................................................................................................. 1 3.0 Purpose and Need .......................................................................................................................... 6 4.0 Decision ......................................................................................................................................... 7 4.1 The Decision .............................................................................................................................. 7 4.2 Selected Alternative................................................................................................................... 8 4.2.1 Best Management Practices ................................................................................................ 9 4.2.2 Monitoring ....................................................................................................................... -
San Juan / Dolores River Basin Water Resources Planning Model User's Manual
San Juan / Dolores River Basin Water Resources Planning Model User’s Manual October 2009 Table of Contents 1. INTRODUCTION ......................................................................................................... 1-1 1.1 Background ...................................................................................................................... 1-1 1.2 Development of the Gunnison River Basin Model .......................................................... 1-1 1.3 Results .............................................................................................................................. 1-2 1.4 Future Enhancements ....................................................................................................... 1-2 1.5 Acknowledgements .......................................................................................................... 1-2 2. WHAT’S IN THIS DOCUMENT ................................................................................... 2-1 2.1 Scope of this Manual ....................................................................................................... 2-1 2.2 Manual Contents .............................................................................................................. 2-1 2.3 What’s in other CDSS documentation ............................................................................. 2-3 3. THE GUNNISON RIVER BASIN ................................................................................. 3-1 3.1 Physical Geography ........................................................................................................ -
Mineral Resources of the San Juan Primitive Area, Colorado
Mineral Resources of the San Juan Primitive Area, Colorado By T. A. STEVEN and L. J. SCHMITT, JR., U.S. GEOLOGICAL SURVEY, and M. J. SHERIDAN and F. E. WILLIAMS, U.S. BUREAU of MINES With a section on IRON RESOURCES IN THE IRVING FORMATION By JACOB E. GAIR and HARRY KLEMIC, U.S. GEOLOGICAL SURVEY STUDIES RELATED TO WILDERNESS PRIMITIVE AREAS GEOLOGICAL SURVEY BULLETIN 1261-F An evaluation of the mineral potential of the area UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1969 UNITED STATES DEPARTMENT OF THE INTERIOR WALTER J. HICKEL, Secretary GEOLOGICAL SURVEY William T. Pecora, Director For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 STUDIES RELATED TO WILDERNESS PRIMITIVE AREAS The Wilderness Act (Public Law 88-577, Sept. 3, 1964) and the Conference Report on Senate bill 4, 88th Congress, direct the U.S. Geological Survey and the U.S. Bureau of Mines to make mineral surveys of wilderness and primi tive areas. Areas officially designated as "wilderness," "wild," or "canoe" when the act was passed were incor porated into the National Wilderness Preservation Sys tem. Areas classed as "primitive" were not included in the Wilderness System, but the act provided that each primitive area should be studied for its suitability for incorporation into the Wilderness System. The mineral surveys constitute one aspect of the suitability studies. This bulletin reports the results of a mineral survey of the San Juan and the Upper Rio Grande primitive areas, Colorado. The area discussed in the report corresponds to the area under consideration for wilderness status. -
San Juan / Dolores River Basin Water Resources Planning Model User's
San Juan / Dolores River Basin Water Resources Planning Model User’s Manual July 2016 Table of Contents Table of Contents ................................................................................................................................. i 1. Introduction .......................................................................................................................... 1‐1 1.1 Background ...................................................................................................................... 1‐1 1.2 Development of the San Juan / Dolores River Basin Water Resources Planning Model 1‐1 1.3 Future Enhancements ...................................................................................................... 1‐3 1.4 Acknowledgements .......................................................................................................... 1‐3 2. What’s in This Document ...................................................................................................... 2‐1 2.1 Scope of this Manual ....................................................................................................... 2‐1 2.2 Manual Contents .............................................................................................................. 2‐1 2.3 What’s in other CDSS documentation ............................................................................. 2‐2 3. The San Juan / Dolores River Basin ....................................................................................... 3‐1 3.1 Physical Geography -
Appendix D Wild and Scenic Rivers Suitability
Appendix D Wild and Scenic Rivers Suitability Final Environmental Impact Statement Table of Contents Introduction to Wild and Scenic River Suitability .................................................................................... 1 Eligible Rivers ......................................................................................................................................... 1 Characteristics of Eligible Rivers ............................................................................................................ 4 Introduction – Suitability Analysis Process ............................................................................................. 5 Collaboration with State and County Government and the Government-to-Government Water Roundtable ............................................................................................................................................. 6 Procedural Steps Following Completion of the Land and Resource Management Plan Revision and Use of this Appendix ........................................................................................................... 8 Management of Eligible River Segments Following Suitability Determinations .................................. 8 Dolores River System ............................................................................................................................. 8 Dolores River above McPhee Reservoir .......................................................................................... 9 Dolores River - McPhee Reservoir