DOCSLIB.ORG

Water Resources of the Chuska Mountains Area, Navajo Indian Reservation, Arizona and New Mexico

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Water Resources of the Chuska Mountains Area, Navajo Indian Reservation, Arizona and New Mexico GEOLOGICAL SURVEY CIRCULAR 308 WATER RESOURCES OF THE CHUSKA MOUNTAINS AREA, NAVAJO INDIAN RESERVATION, ARIZONA AND NEW MEXICO WITH A SECTION ON QUALITY OF WATER Prepared in cooperation with the Bureau of Indian Affairs UNITED STATES DEPARTMENT OF THE INTERIOR Douglas McKay, Secretary GEOLOGICAL SURVEY W. E. Wrather, Director GEOLOGICAL SURVEY CIRCULAR 308 WATER RESOURCES OF THE CHUSKA MOUNTAINS AREA, NAVAJO INDIAN RESERVATION, ARIZONA AND NEW MEXICO By J. W. Harshbarger and C. A. Repenning WITH A SECTION ON QUALITY OF WATER By J. L. Hatchett Prepared in cooperation with the Bureau of Indian Affairs Washington, D. C., 1954 Free on application to the Geological Survey, Washington 25, D. C. CONTENTS Page Page Abstract.................................................. 1 Geology and ground-water resources Continued Introduction.............................................. 1 Sedimentary rocks and their water-bearing Location............................................... 1 properties Continued Topography and drainage......................... 2 Cretaceous system Continued Climate................................................ 2 Mancos shale................................... Summary of problem............................... 2 Mesaverde group.............................. Field work and acknowledgments............... 2 Gallup sandstone............................ Geology and ground-water resources............. 2 Point Lookout sandstone.................. Sedimentary rocks and their water-bearing Menefee formation......................... properties.................................... 3 Tertiary system.................................. Permian system.................................. 3 C huska s ands tone.............................. DeChelly sands tone........................... 3 Manganese deposits........................ Triassic systern.................................. 3 Quaternary sys tern............................... Shinarump conglomerate.................... 3 Alluvium......................................... Chinle formation............................... 3 Igneous rocks and their water-bearing Lower sandy unit........................... 3 properties. ................................. Petrified Forest member................ 4 Tertiary system.................................. Upper limy unit............................. 4 S true ture............................................... Glen Canyon group............................ 4 Water supplies.......................................... Winga te sands tone.......................... 4 Surface water......................................... Jurass ic sys tern.................................. 4 Western-escarpment drainage................ San Rafael group............................... 4 Eas tern-escarpment drainage................ Entrada sands tone.......................... 4 Ground water......................................... 10 Todilto limestone........................... 5 Present supplies.................................. 10 Summerville formation................... 5 Eastern part of the area..................... 10 Morrison formation........................... 5 Western part of the area.................... 12 Salt Wash member......................... 5 Quality of water...................................... 14 Recapture member......................... 5 Surface water...................................... 14 Westwater Canyon member.............. 5 Ground water...................................... 14 Brushy Basin member.................... 5 C onclus ions .............................................. 15 C re taceous sys tern............................... 5 References............................................... 16 Dakota sands tone.............................. 5 ILLUSTRATIONS Page Plate 1. Geologic map and section of the Chuska Mountains area, Arizona and New Mexico...................In pocket 2. Explanation for plate 1.................................................................................................. In pocke t Figure 1. Index map of the Chuska Mountains area, Arizona and New Mexico.......................................Facing 1 TABLES Page Table Streamflow measurements in the Chuska Mountains area, 1952................................................. 9 Selected drillers' logs of wells in the Chuska Mountains area................................................... 10 Chemical analyses of surface water of the western Chuska Mountains area, Apache County, Ariz. , and San Juan County, N. Mex........................................................................................... 11 Stratigraphic section that would be encountered by drilling a well 2 miles northeast of Toadlena, N. Mex.................... .................. ..................................... .. .......................................... 11 Chemical analyses of ground water in the Chuska Mountains area, Apache County, Ariz., and San Juan County, N. Mex............................................................................ ......................... 13 Stratigraphic section that would be encountered by drilling a well 1 mile northwest of Whisky Creek bridge........................................................... ...................................................... 14 III 35° Figure 1. Index map of the Chuska Mountains area, Arizona and New Mexico WATER RESOURCES OF THE CHUSKA MOUNTAINS AREA, NAVAJO INDIAN RESERVATION, ARIZONA AND NEW MEXICO By J. W. Harshbarger and C. A. Repenning WITH A SECTION ON QUALITY OF WATER By J. L. Hatchett ABSTRACT altitudes, water from runoff and springs is advanta­ geously used for irrigation and domestic purposes. At A water-resources investigation was made of the the lower altitudes, water is obtained from wells that Chuska Mountains area at the request of the Bureau produce from the Cretaceous sandstones and the Mor­ of Indian Affairs to determine the availability of water rison formation. In this area, most of the water from for the operation of two proposed sawmills and a pro­ the Cretaceous sandstones is not suitable for domestic posed manganese mill. The daily requirements for the or industrial purposes; on the other hand, water from operation of these mills would be more than 220, 000 the Morrison formation is suitable. The water from gallons of water of a type suitable for domestic and the Chuska sandstone contains low amounts of dissolved industrial purposes. solids and is suitable for the required uses. The Chuska Mountains consist of an oblong block of The results of this water-resources investigation sedimentary rocks, capped by volcanic rocks, that lie indicate that sufficient quantities of suitable water sup­ on th&. eastern flank of the Defiance Uplift. In ascend­ plies can be developed for the operation of the proposed ing order, the sedimentary rocks that occur in the area sawmills and manganese mill. On the western side of are: the DeChelly sandstone of Permian age; theShinar- the area, at the proposed site for one of the sawmills ump conglomerate, Chinle formation, and Wingate and the manganese mill, water can be obtained from sandstone of Triassic age; the Entrada sandstone, the perennial streams, from the water-bearing alluvi­ Todilto limestone, Summerville formation, and Morri- um in Whisky Creek drainage, or from wells penetrat­ son formation of Jurassic age; the Dakota sandstone, ing the Shinarump conglomerate and the DeChelly sand­ Mancos shale, Gallup sandstone, Point Lookout sand­ stone. On the eastern side, water for the other pro­ stone, and Menefee formation of Cretaceous age; and posed sawmill can be obtained from a well penetrating the Chuska sandstone of Tertiary age. The water­ the Morrison formation that probably would have an bearing properties, recharge conditions, and struc­ artesian flow. tural attitude of the Chuska sandstone, Morrison for­ mation, Shinarump conglomerate, and the DeChelly sandstone indicate that these formations are favorable INTRODUCTION for the development of ground-water supplies. The al­ luvial material in several of the principal drainages An investigation of the water resources of the Chuska also is a potential source of ground-water development. Mountains area, Navajo Indian Reservation, Ariz. and N. Mex., was undertaken by the United States Geological The available water supplies in the Chuska Mountains Survey during the spring and summer of 1952, at the area are obtained from both surface-water and ground- request of the Bureau of Indian Affairs. The work on water sources. In the western part of the area, there the Chuska Mountains area was a part of the regional are several principal perennial streams that supply investigation of the ground-water resources of the water to local residents for domestic, stock, and irri­ Navajo and Hopi Reservations now being made by the gation uses. The perennial character of these streams Geological Survey. The work was financed by the Bu­ is maintained by ground water discharging from the reau of Indian Affairs. The study of the Chuska Moun­ Chuska sandstone. Numerous springs occur at the base tains area was requested to ascertain the amounts of of the Chuska sandstone along the western escarpment available water prior to the establishment of two saw­ because the regional dip of the Chuska is toward the mills and a manganese mill in the area. southwest. Ground water can be developed from the Shinarump conglomerate and the DeChelly sandstone anywhere in the western part of the area, but, in the Location southern part, wells would have to be drilled
Load more

Recommended publications
  • Narbonapass.Pdf
    FIRST-DAY ROAD LOG 1 FIRST-DAY ROAD LOG, FROM GALLUP TO GAMERCO, YAH-TA-HEY, WINDOW ROCK, FORT DEFIANCE, NAVAJO, TODILTO PARK, CRYSTAL, NARBONA PASS, SHEEP SPRINGS, TOHATCHI AND GALLUP SPENCER G. LUCAS, STEVEN C. SEMKEN, ANDREW B. HECKERT, WILLIAM R. BERGLOF, First-day Road Log GRETCHEN HOFFMAN, BARRY S. KUES, LARRY S. CRUMPLER AND JAYNE C. AUBELE ������ ������ ������ ������� ������ ������ ������ ������ �������� Distance: 141.8 miles ������� Stops: 5 ���� ������ ������ SUMMARY ������ �� ������ �� ����� �� The first day’s trip takes us around the southern �� �� flank of the Defiance uplift, back over it into the �� southwestern San Juan Basin and ends at the Hogback monocline at Gallup. The trip emphasizes Mesozoic— especially Jurassic—stratigraphy and sedimentation in NOTE: Most of this day’s trip will be conducted the Defiance uplift region. We also closely examine within the boundaries of the Navajo (Diné) Nation under Cenozoic volcanism of the Navajo volcanic field. a permit from the Navajo Nation Minerals Department. Stop 1 at Window Rock discusses the Laramide Persons wishing to conduct geological investigations Defiance uplift and introduces Jurassic eolianites near on the Navajo Nation, including stops described in this the preserved southern edge of the Middle-Upper guidebook, must first apply for and receive a permit Jurassic depositional basin. At Todilto Park, Stop 2, from the Navajo Nation Minerals Department, P.O. we examine the type area of the Jurassic Todilto For- Box 1910, Window Rock, Arizona, 86515, 928-871- mation and discuss Todilto deposition and economic 6587. Sample collection on Navajo land is forbidden. geology, a recurrent theme of this field conference. From Todilto Park we move on to the Green Knobs diatreme adjacent to the highway for Stop 3, and then to Stop 4 at the Narbona Pass maar at the crest of the Chuska Mountains.
    [Show full text]
  • Hydrogeology of the Chinle Wash Watershed, Navajo Nation Arizona, Utah and New Mexico
    Hydrogeology of the Chinle Wash Watershed, Navajo Nation Arizona, Utah and New Mexico Item Type Thesis-Reproduction (electronic); text Authors Roessel, Raymond J. Publisher The University of Arizona. Rights Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Download date 07/10/2021 19:50:22 Link to Item http://hdl.handle.net/10150/191379 HYDROGEOLOGY OF THE CHINLE WASH WATERSHED, NAVAJO NATION, ARIZONA, UTAH AND NEW MEXICO by Raymond J. Roessel A Thesis Submitted to the Faculty of the DEPARTMENT OF HYDROLOGY AND WATER RESOURCES In Partial Fulfillment of the Requirements For the Degree of MASTER OF SCIENCE WITH A MAJOR IN HYDROLOGY In the Graduate College THE UNIVERSITY OF ARIZONA 1994 2 STATEMENT BY AUTHOR This thesis has been submitted in partial fulfillment of requirements for an advanced degree at The University of Arizona and is deposited in the University Library to be made available to borrowers under rules of the Library. Brief quotations from this thesis are allowable without special permission, provided that accurate acknowledgment of source is made. Requests for permission for extended quotation from or reproduction of this manuscript in whole or in part may be granted by the head of the major department or the Dean of the Graduate College when in his or her judgment the proposed use of the material is in the interests of scholarship. In all other instances, however, permission must be obtained from the author.
    [Show full text]
  • Rainfall-Runoff Model for Black Creek Watershed, Navajo Nation
    Rainfall-Runoff Model for Black Creek Watershed, Navajo Nation Item Type text; Proceedings Authors Tecle, Aregai; Heinrich, Paul; Leeper, John; Tallsalt-Robertson, Jolene Publisher Arizona-Nevada Academy of Science Journal Hydrology and Water Resources in Arizona and the Southwest Rights Copyright ©, where appropriate, is held by the author. Download date 25/09/2021 20:12:23 Link to Item http://hdl.handle.net/10150/301297 37 RAINFALL-RUNOFF MODEL FOR BLACK CREEK WATERSHED, NAVAJO NATION Aregai Tecle1, Paul Heinrich1, John Leeper2, and Jolene Tallsalt-Robertson2 ABSTRACT This paper develops a rainfall-runoff model for estimating surface and peak flow rates from precipitation storm events on the Black Creek watershed in the Navajo Nation. The Black Creek watershed lies in the southern part of the Navajo Nation between the Defiance Plateau on the west and the Chuska Mountains on the east. The area is in the semiarid part of the Colorado Plateau on which there is about 10 inches of precipitation a year. We have two main purposes for embarking on the study. One is to determine the amount of runoff and peak flow rate generated from rainfall storm events falling on the 655 square mile watershed and the second is to provide the Navajo Nation with a method for estimating water yield and peak flow in the absence of adequate data. Two models, Watershed Modeling System (WMS) and the Hydrologic Engineering Center (HEC) Hydrological Modeling System (HMS) that have Geographic Information System (GIS) capabilities are used to generate stream hydrographs. Figure 1. Physiographic map of the Navajo Nation with the Chuska The latter show peak flow rates and total amounts of Mountain and Deance Plateau and Stream Gaging Stations.
    [Show full text]
  • Arizona's Wildlife Linkages Assessment
    ARIZONAARIZONA’’SS WILDLIFEWILDLIFE LINKAGESLINKAGES ASSESSMENTASSESSMENT Workgroup Prepared by: The Arizona Wildlife Linkages ARIZONA’S WILDLIFE LINKAGES ASSESSMENT 2006 ARIZONA’S WILDLIFE LINKAGES ASSESSMENT Arizona’s Wildlife Linkages Assessment Prepared by: The Arizona Wildlife Linkages Workgroup Siobhan E. Nordhaugen, Arizona Department of Transportation, Natural Resources Management Group Evelyn Erlandsen, Arizona Game and Fish Department, Habitat Branch Paul Beier, Northern Arizona University, School of Forestry Bruce D. Eilerts, Arizona Department of Transportation, Natural Resources Management Group Ray Schweinsburg, Arizona Game and Fish Department, Research Branch Terry Brennan, USDA Forest Service, Tonto National Forest Ted Cordery, Bureau of Land Management Norris Dodd, Arizona Game and Fish Department, Research Branch Melissa Maiefski, Arizona Department of Transportation, Environmental Planning Group Janice Przybyl, The Sky Island Alliance Steve Thomas, Federal Highway Administration Kim Vacariu, The Wildlands Project Stuart Wells, US Fish and Wildlife Service 2006 ARIZONA’S WILDLIFE LINKAGES ASSESSMENT First Printing Date: December, 2006 Copyright © 2006 The Arizona Wildlife Linkages Workgroup Reproduction of this publication for educational or other non-commercial purposes is authorized without prior written consent from the copyright holder provided the source is fully acknowledged. Reproduction of this publication for resale or other commercial purposes is prohibited without prior written consent of the copyright holder. Additional copies may be obtained by submitting a request to: The Arizona Wildlife Linkages Workgroup E-mail: [email protected] 2006 ARIZONA’S WILDLIFE LINKAGES ASSESSMENT The Arizona Wildlife Linkages Workgroup Mission Statement “To identify and promote wildlife habitat connectivity using a collaborative, science based effort to provide safe passage for people and wildlife” 2006 ARIZONA’S WILDLIFE LINKAGES ASSESSMENT Primary Contacts: Bruce D.
    [Show full text]
  • Accessible Report (PDF)
    United States Department of Agriculture Story Map: Forest Health Summary for Southwestern Region 2019 USDA Forest Service Forest Health Protection, Arizona Department of Forestry and Fire Management, New Mexico State Forestry Background: This is an accessible version of the content on the ESRI Story Map with the Forest Health Summary for the Southwestern Region 2019 which is at: http://www.fs.usda.gov/goto/r3/healthreport. This document contains the text and photographs of the Story Map, however note that the content of the interactive maps are not capable of being reproduced here. Introduction The Forest Health Protection Program works collaboratively with Arizona State Department of Forestry and Fire Management and New Mexico State Forestry to conduct annual aerial detection surveys of forest health conditions. These surveys assess forest insect and disease issues throughout the Southwestern Region. This includes damage such as tree mortality caused by bark beetles, tree defoliation by leaf/needle feeding caterpillars, tree discoloration, or branch flagging caused by pathogens, and abiotic factors like hail damage. In 2019, approximately 23,100,000 acres of Federal, state and private forest and woodlands in NM and AZ were surveyed. Insect and disease damage detectable from an aircraft were recorded by host, damage agent and intensity of damage using the Digital Mobile Sketchmapping application on Android tablets. Damage is recorded with points for small occurrences or with polygons for larger areas and given intensity levels depending on the severity of the damage. When interpreting this data, special attention should be paid to intensity levels. For more information on data interpretation, please read the methodology section below.
    [Show full text]
  • Summary of the Geology and Resources of Uranium in the San Juan Basin and Adjacent Region
    u~c..~ OFR :J8- 'JtgLJ all''1 I. i \ "' ! .SUHMARY OF THE GEOLOGY .ANp RESOURCES OF ,URANIUM IN THE SAN JUAN BASIN AND ADJACENT 'REGION, NEW MEXICO, ARIZONA, UTAH & COLORADO I , J.L. Ridgley, et. al. 1978 US. 6EOL~ SURVEY ~RD, US'RARY 505 MARQU51"1"5 NW, RM 72e I .1\LB'U·QuERQ~, N.M. 87'102 i I UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY SUMMARY OF THE GEOLOGY AND RESOURCES OF URANIUM IN THE SAN JUAN BASIN AND ADJACENT REGION, NEW MEXICO, A~IZONA, UTAH, AND COLORADO 'V'R.0 t ~.-4~ . GICAL SURVEY p.· ..... P• 0 . .:.;J .. _. ·5 ALBU~U~~QUE, N. By Jennie L. Ridgley, Morris W. Green, Charles T. Pierson, • Warren I. Finch, and Robert D. Lupe Open-file Report 78-964 1978 Contents • Page Abstract Introduction 3 General geologic setting 3 Stratigraphy and depositional environments 4 Rocks of Precambrian age 5 .. Rocks of Cambrian age 5 < 'I Ignacio Quartzite 6 Rocks of Devonian age 6... i Aneth Formation 6 Elbert Formation 7 Ouray Limestone 7 Rocks of Mississippian age 8 Redwall Limestone 8 Leadville Limestone 8 Kelly Limestone 9 Arroyo Penasco Group 10 Log Springs Formation 10 Rocks of Pennsylvanian age 11 Molas Formation 11 ~ermosa Formation 12 .' . Ric9 Formation'· 13 .. •;,. Sandia Fotfuatto~ 13 Madera Limestone 14 Unnamed Pennsylvanian rocks 15 • ii • Rocks of Permian age 15 Bursum Formation 16 Abo Formation 16 Cutler Formation 17. Yeso Formation 18 Glorieta Sandstone 19 San Andres Limestone 19 Rocks of Triassic age 20 Moenkopi(?) Formation 21 Chinle Formation 21 Shinarump Member 21 Monitor Butte Member 22 Petrified Forest
    [Show full text]
  • Hydrogeology of the Cenozoic Igneous Rocks, Navajo and Hopi Indian Reservations, Arizona, New Mexico, and Utah
    Hydrogeology of the Cenozoic Igneous Rocks, Navajo and Hopi Indian Reservations, Arizona, New Mexico, and Utah GEOLOGICAL SURVEY PROFESSIONAL PAPER 521-D Prepared in cooperation with the Bureau of Indian Affairs and the Navajo Tribe .. HYDROGEOLOGY OF THE CENOZOIC IGNEOUS ROCKS, NAVAJO AND HOPI INDIAN RESERVATIONS, ARIZONA, NEW MEXICO, AND UTAH Boundary Butte, one of the iHolated volcanic necks in the Navajo country. Photograph by E. T. Nichols. • Hydrogeology of the Cenozoic Igneous Rocks, Navajo and Hopi Indian Reservations, Arizona, New Mexico, and U tab By]. P. AKERS,]. C. SHORTY, and P.R. STEVENS HYDROGEOLOGY OF THE NAVAJO AND HOPI INDIAN RESERVATIONS, ARIZONA, NEW MEXICO, AND UTAH GEOLOGICAL SURVEY PROFESSIONAL PAPER 521-D Prepared in cooperation with the Bureau oj Indian Affairs and the Nava;·o Tribe UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON 1971 UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY William T. Pecora, Director For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 CONTENTS Page Page Abstract __________________________________________ _ D1 Volcanic rocks _____________________________________ _ D4 Introduction ______________________________________ _ 1 Monchiquite province __________________________ _ 5 Minette province ______________________________ _ Purpose, scope, and organization of the report_ ____ _ 1 9 Basalt province ________________________________ _ 12 Location ______________________________________ _ 2 Hydrology of the volcanic rocks _____________________ _ Fieldwork ____________________________________ :..._ 13 2 Diatremes ____________________________________ _ 13 Acknowledgments ______________________________ _ 2 Chemical quality of the ground water ____________ _ 15 Previous investigations _____________________________ _ 2 Development of ground water ___________________ _ 15 Stock laccoliths ____________________________________ _ 3 Literature cited ___________________________________ -_ 17 ILLUSTRATIONS Page FRONTISPIECE.
    [Show full text]
  • Navajo Nation Snowpack Variability from 1985-2014 and Implications for Water Resources Management *Lani M
    124 Universities Council on Water Resources Journal of Contemporary Water Research & Education Issue 163, Pages 124-138, April 2018 Navajo Nation Snowpack Variability from 1985-2014 and Implications for Water Resources Management *Lani M. Tsinnajinnie1, David S. Gutzler2, and Jason John3 1Department of Earth and Environmental Sciences, New Mexico Institute of Mining and Technology, Socorro, NM, 2Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM, 3Navajo Nation Department of Water Resources, Water Management Branch, Ft. Defiance, AZ *Corresponding Author Abstract: In the arid Southwest, snowpack in mountains plays an essential role in supplying surface water resources. Water managers from the Navajo Nation monitor snowpack at nine snow survey stations located in the Chuska Mountains and Defiance Plateau in northern Arizona and New Mexico. We characterize these snowpack data for the period 1985-2014 and evaluate the efficacy of snowpack data collection efforts. Peak snow water equivalent occurs in early to mid-March depending on elevation. Variability in snowpack levels correlates highly among all sites (r > 0.64), but higher elevation sites in the Chuska Mountains correlate more strongly with one another compared to lower elevation sites and vice versa. Northern sites also correlate well with each other. A principal component analysis is used to create a weighted average time series of year-to-year peak snowpack variability. The first principal component showed no trend in increasing or decreasing Navajo Nation snowpack. Results from this research will provide the Navajo Nation Department of Water Resources information to help determine if any snow survey sites in the Chuska Mountains are redundant and can be discontinued to save time and money, while still providing snowpack information needed by the Navajo Nation.
    [Show full text]
  • Paleoclimatic Indicators of Surface Water Resources in the Chuska Mountains, Navajo Nation
    PALEOCLIMATIC INDICATORS OF SURFACE WATER RESOURCES IN THE CHUSKA MOUNTAINS, NAVAJO NATION Becky Brice School of Geography and Development Laboratory of Tree-Ring Research University of Arizona [email protected] Climate Assessment of the Southwest Climate and Society Fellowship Final Report 2018 1 EXECUTIVE SUMMARY • Declining snow water equivalent is impacting water resources in northeastern Arizona, a condition that is expect to be exacerbated in a warming and drying future. • Water availability is a critical issue for the Navajo Nation in the coming decades. Navajo tribal members who use the lakes along the crest of the Chuska Mountains for stock, wildlife, and recreation report declining lake levels and diminished surface water availability. • Projections of rising temperatures and possible precipitation declines in the southwestern United States suggest that diminished surface water resources in the Chuska Mountains may continue in the future. • Instrumental records of climate and of surface waters in the Chuska Mountains are acutely limited. The Navajo Nation began recording snow depth and snow water equivalent in 1985. At the time of this study, no lake level records existed for the Chuskas. • This study is a collaborative effort with the aim of co-producing knowledge about the long-term variability of snow water equivalent and surface waters in the Chuska Mountains of the Navajo Nation. It is the result of collective efforts of the Navajo Nation Department of Water Resources Water Management Branch and the University of Arizona. The goal was to produce management relevant science products for the modern and paleo periods. • The study represents the first attempt to place current snow water equivalent conditions in the context of the last 400 years.
    [Show full text]
  • Navajo Mountain Vole (Microtus Mogollonensis)
    TOC Page | 61 NAVAJO MOUNTAIN VOLE (MICROTUS MOGOLLONENSIS) Navajo/Federal Statuses: NESL G4 / not listed under the ESA. Distribution: Range of M.mogollonensis is AZ, NM and Mexico with small populations in southern UT, CO, and TX. M.m.navaho range extends from Williams, AZ to Mesa Verde, CO, including four locations on Navajo Nation: Navajo Mountain, Black Mesa, Defiance Plateau, and Chuska Mountains. Habitat: Typically occupy dry grassy vegetation in conifer forests, with variations including: dense prostrate shrub patches in ponderosa pine forests (Navajo Mountain); monotypic sagebrush stands, thick grasses in greasewood/ desert-olive stands and juniper stands, shrubby tamarisk thickets and chained pinyon and juniper woodlands (Black Mesa); and clear-cut pine flats with regenerating grasses and scattered oak (Chuska Mountains). Ground cover vegetation is necessary. Similar Species: Clethrionomys gapperi has reddish fur on dorsum; Microtus montanus and M. longicaudus have slightly longer tails and four pair of mammary glands. Phenology: m.APR-l.AUG: pregnancy, birthing, lactating of young e.SEP-m.APR: non-breeding season Survey Method: t1 pedestrian survey for habitat evaluation and presence of runways; species identification requires live-trapping. Avoidance: No activity (year-round) within 60 m of occupied habitat that could result in destruction of burrows/runways and take of individuals. References: Frey, J.K. and C.T. LaRue. 1993. Notes on the distribution of the mogollon vole (Microtus mogollonensis) in New Mexico and Arizona. Southwestern Naturalist 38:176-178. Hoffmeister, D.F. 1986. Mammals of Arizona. University of Arizona Press. (description p.441). Spicer, R.B. 1987. Status of the Navajo Mountain Mexican vole (Microtus mexicanus navaho Benson) along the Arizona-Utah border.
    [Show full text]
  • Navajo Nation Species Accounts
    TOC Page |i PREFACE: NESL SPECIES ACCOUNTS Welcome to Version 4.20 of the Navajo Nation Endangered Species List Species Accounts which were produced to accompany The Navajo Nation’s February 13, 2020 revision to the Navajo Endangered Species List. The order of Accounts follows the February 2020 revision of the NESL, a copy of which is enclosed for reference. These Accounts were developed and distributed by the Navajo Natural Heritage Program, of the Navajo Nation Department of Fish and Wildlife, to help planners and biologists answer basic questions about species of concern during project planning. Your constructive comments are encouraged. Species Accounts are preliminary tools for project planning. Their target audiences are project planners, and biologists not familiar with: 1) species’ life histories and habitat in this region; and 2) Tribal and Federal protection requirements. Their purpose is to provide clear-cut information so that basic questions can be answered early in the planning process. Therefore, they should be reviewed as soon as potential species for the project area are identified. Accounts will prove useful early in the planning process, but they should be used as a quick-reference anytime. If protected species are found then more research and likely coordination with the Department will be necessary. At the end of each account is a short bibliography for planning the details of surveys, and answering more in-depth questions. For planning surveys and developing avoidance/mitigation measures, Accounts no longer distinguish between required and recommended activities; i.e. the terms ‘suggested survey method’ or ‘recommended avoidance’ are not used in V 4.20.
    [Show full text]
  • Resume of the Geology of Arizona," Prepared by Dr
    , , A RESUME of the GEOWGY OF ARIZONA by Eldred D. Wilson, Geologist THE ARIZONA BUREAU OF MINES Bulletin 171 1962 THB UNIVBR.ITY OP ARIZONA. PR••• _ TUC.ON FOREWORD CONTENTS Page This "Resume of the Geology of Arizona," prepared by Dr. Eldred FOREWORD _................................................................................................ ii D. Wilson, Geologist, Arizona Bureau of Mines, is a notable contribution LIST OF TABLES viii to the geologic and mineral resource literature about Arizona. It com­ LIST OF ILLUSTRATIONS viii prises a thorough and comprehensive survey of the natural processes and phenomena that have prevailed to establish the present physical setting CHAPTER I: INTRODUCTION Purpose and scope I of the State and it will serve as a splendid base reference for continued, Previous work I detailed studies which will follow. Early explorations 1 The Arizona Bureau of Mines is pleased to issue the work as Bulletin Work by U.S. Geological Survey.......................................................... 2 171 of its series of technical publications. Research by University of Arizona 2 Work by Arizona Bureau of Mines 2 Acknowledgments 3 J. D. Forrester, Director Arizona Bureau of Mines CHAPTER -II: ROCK UNITS, STRUCTURE, AND ECONOMIC FEATURES September 1962 Time divisions 5 General statement 5 Methods of dating and correlating 5 Systems of folding and faulting 5 Precambrian Eras ".... 7 General statement 7 Older Precambrian Era 10 Introduction 10 Literature 10 Age assignment 10 Geosynclinal development 10 Mazatzal Revolution 11 Intra-Precambrian Interval 13 Younger Precambrian Era 13 Units and correlation 13 Structural development 17 General statement 17 Grand Canyon Disturbance 17 Economic features of Arizona Precambrian 19 COPYRIGHT@ 1962 Older Precambrian 19 The Board of Regents of the Universities and Younger Precambrian 20 State College of Arizona.
    [Show full text]