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University of Oklahoma Graduate College
UNIVERSITY OF OKLAHOMA GRADUATE COLLEGE POTENTIAL FIELD STUDIES OF THE CENTRAL SAN LUIS BASIN AND SAN JUAN MOUNTAINS, COLORADO AND NEW MEXICO, AND SOUTHERN AND WESTERN AFGHANISTAN A DISSERTATION SUBMITTED TO THE GRADUATE FACULTY in partial fulfillment of the requirements for the Degree of DOCTOR OF PHILOSOPHY By BENJAMIN JOHN DRENTH Norman, Oklahoma 2009 POTENTIAL FIELD STUDIES OF THE CENTRAL SAN LUIS BASIN AND SAN JUAN MOUNTAINS, COLORADO AND NEW MEXICO, AND SOUTHERN AND WESTERN AFGHANISTAN A DISSERTATION APPROVED FOR THE CONOCOPHILLIPS SCHOOL OF GEOLOGY AND GEOPHYSICS BY _______________________________ Dr. G. Randy Keller, Chair _______________________________ Dr. V.J.S. Grauch _______________________________ Dr. Carol Finn _______________________________ Dr. R. Douglas Elmore _______________________________ Dr. Ze’ev Reches _______________________________ Dr. Carl Sondergeld © Copyright by BENJAMIN JOHN DRENTH 2009 All Rights Reserved. TABLE OF CONTENTS Introduction…………………………………………………………………………..……1 Chapter A: Geophysical Constraints on Rio Grande Rift Structure in the Central San Luis Basin, Colorado and New Mexico………………………………………………………...2 Chapter B: A Geophysical Study of the San Juan Mountains Batholith, southwestern Colorado………………………………………………………………………………….61 Chapter C: Geophysical Expression of Intrusions and Tectonic Blocks of Southern and Western Afghanistan…………………………………………………………………....110 Conclusions……………………………………………………………………………..154 iv LIST OF TABLES Chapter A: Geophysical Constraints on Rio Grande Rift Structure in the Central -
APPEAL of DECISION NOTICE, GUNNISON RANGER DISTRICT Grand Mesa, Uncompahgre and Gunnison National Forests
APPEAL OF DECISION NOTICE, GUNNISON RANGER DISTRICT Grand Mesa, Uncompahgre and Gunnison National Forests DOUBLE HEART RANCH, ON BEHALF OF LOCAL LANDOWNERS AND INTERESTED CITIZENS APPELLANTS Notice of Appeal, Statement of Reasons and Request for Relief Regarding the Geothermal Lease Nomination COC- 73584 EA and DN v. CHARLES RICHMOND GMUG FOREST SUPERVISOR AND JOHN MURPHY GUNNISON RANGER DISTRICT RESPONDENTS NOTICE OF APPEAL STATEMENT OF REASONS AND RELIEF REQUESTED DATED this 25 th day of March, 2011 Matthew R. Jones Double Heart Ranch 7500 County Road 887 Gunnison, CO 81230 Direct: (512) 635-7814 Fax: (214) 378-7501 Email: [email protected] David Brown Ranch Manager: (970) 641-0690 1 NOTICE OF APPEAL On February 10, 2011, Forest Supervisor Charles Richmond signed the Decision Notice for Geothermal Lease Nomination COC-73584. This is a Notice of Appeal of that decision pursuant to 36 C.F.R. Part 215. The Double Heart Ranch, Local Landowners, and a great many others use and enjoy the Tomichi Dome, and the surrounding lands covered by this decision. Further, DH Ranch submitted comments at every stage of this process to every agency involved to be considered for this National Environmental Policy Act process. DH Ranch also attended every public meeting, even when notice was grossly insufficient and public comment was inappropriately restricted and prevented. This appeal is timely pursuant to 36 C.F.R. §215.14. Appellant requests that the DN be withdrawn, a proper NEPA process be conducted, and a new decision of No Action be issued, protecting our public resources. THE APPELLANTS The Double Heart Ranch is a historic Colorado property wholly situated on or around the Tomichi Dome and the property encompassed by this decision. -
Statement of Dan Gibbs Executive Director Colorado Department Of
Statement of Dan Gibbs Executive Director Colorado Department of Natural Resources Before The Subcommittee on National Parks, Forests, and Public Lands of The House Natural Resources Committee April 2, 2019 Chairwoman Haaland, Ranking Member Young, and Members of the Subcommittee: On behalf of Governor Polis and the State of Colorado, we appreciate the opportunity to provide testimony on the Colorado Outdoor Recreation and Economy Act (H.R. 823). We strongly support the CORE Act and hope Congress will move swiftly to enact it. Governor Polis would have liked to be here today with his former colleagues to express his strong support for this legislation. As you know, as a member of Congress, Governor Polis had sponsored the Continental Divide Recreation, Wilderness and Camp Hale Legacy Act, which has now been incorporated into the broader CORE Act. Introduction This legislation—the product of years of collaboration among elected officials, businesses, community members, and a myriad of other interested and affected stakeholders across Colorado—would protect some of the most beloved public lands in Colorado for their unsurpassed recreation, scenery, wildlife, watersheds, historic, and other unique values. As the Executive Director of the Colorado Department of Natural Resources, I support this bill because it will benefit our wildlife by protecting critical habitat and migration corridors; it will protect the outstanding recreational experiences that bring people from across Colorado—and the world—to these special places; it will help safeguard Colorado’s water resources by protecting key watersheds and all water rights; it strikes the right balance by protecting key public lands from development, while protecting all existing mineral rights and leaving other appropriate lands available for mining, oil, and gas development; and because it complements the values and opportunities associated with our state lands. -
Grand Mesa, Uncompahgre and Gunnison National Forests Road - Light Duty ¤£87 Q Private Intermittent Stream 550 Disclaimer ¤£ ¤£50 114 U.S
9 9 9 0 0 2 9 0 0 0 9 2 2 0 00 0 9000 0 0 0 9 9 000 0 2 9 0 200 9 0 96 0 2 0 00 0 ! 00 ! 90 8800 90 C o 94 ! 00 k 9600 a e 0 17 80 l e 8 9 ! 9 9 C 0 16 r 2 40 0 0 ! 00 00 13 0 0 9 r 940 9 C 14 200 0 18 e ! 15 ! ! s e k a k e l 7 l 00 4 e 90 17 15 0 r ! a 16 9400 0 00 14 C 17 D 6 C r 9 Propose13d Whitehouse Add1i8tions to the 20 ! h e ! k c a W t 8600 8 ! r t ! n x Willow i 7 7 o h 8 n e 2 9200 D 1 F i 0 D 9400 o t 0 0 t Swamp e n n 5 s 9 h Mt. Sneffels Wilderness, 2 00 8 ! 00 w 78 e ! D o o 7 u i W T t 2 ! 1 V c s ! 5 0 Moonshine y e 0 . a ! 0 h 6 60 2 n a 8 9 7 c C March 22, 2018 ! 0 A 0 e w 960 r Park ! g 9600 5 C e ! d 8 r Grand Mesa, Uncompahgre i e e 8 k ! e R ! 5 00 k 6 ! 9 ! 2 ! ! . Lake 9600 0 1 1 40 . and Gunnison 9 A ! Map depicts proLpenooresed boundaries for the Whitehouse ! 1 ! 21 5 ! ! 9 ! ! 8 8 0 ! 0 0 ! 22 9 B 0 6 National Forests Additions to the Mt. -
Historical Range of Variability and Current Landscape Condition Analysis: South Central Highlands Section, Southwestern Colorado & Northwestern New Mexico
Historical Range of Variability and Current Landscape Condition Analysis: South Central Highlands Section, Southwestern Colorado & Northwestern New Mexico William H. Romme, M. Lisa Floyd, David Hanna with contributions by Elisabeth J. Bartlett, Michele Crist, Dan Green, Henri D. Grissino-Mayer, J. Page Lindsey, Kevin McGarigal, & Jeffery S.Redders Produced by the Colorado Forest Restoration Institute at Colorado State University, and Region 2 of the U.S. Forest Service May 12, 2009 Table of Contents EXECUTIVE SUMMARY … p 5 AUTHORS’ AFFILIATIONS … p 16 ACKNOWLEDGEMENTS … p 16 CHAPTER I. INTRODUCTION A. Objectives and Organization of This Report … p 17 B. Overview of Physical Geography and Vegetation … p 19 C. Climate Variability in Space and Time … p 21 1. Geographic Patterns in Climate 2. Long-Term Variability in Climate D. Reference Conditions: Concept and Application … p 25 1. Historical Range of Variability (HRV) Concept 2. The Reference Period for this Analysis 3. Human Residents and Influences during the Reference Period E. Overview of Integrated Ecosystem Management … p 30 F. Literature Cited … p 34 CHAPTER II. PONDEROSA PINE FORESTS A. Vegetation Structure and Composition … p 39 B. Reference Conditions … p 40 1. Reference Period Fire Regimes 2. Other agents of disturbance 3. Pre-1870 stand structures C. Legacies of Euro-American Settlement and Current Conditions … p 67 1. Logging (“High-Grading”) in the Late 1800s and Early 1900s 2. Excessive Livestock Grazing in the Late 1800s and Early 1900s 3. Fire Exclusion Since the Late 1800s 4. Interactions: Logging, Grazing, Fire, Climate, and the Forests of Today D. Summary … p 83 E. Literature Cited … p 84 CHAPTER III. -
Colorado Fourteeners Checklist
Colorado Fourteeners Checklist Rank Mountain Peak Mountain Range Elevation Date Climbed 1 Mount Elbert Sawatch Range 14,440 ft 2 Mount Massive Sawatch Range 14,428 ft 3 Mount Harvard Sawatch Range 14,421 ft 4 Blanca Peak Sangre de Cristo Range 14,351 ft 5 La Plata Peak Sawatch Range 14,343 ft 6 Uncompahgre Peak San Juan Mountains 14,321 ft 7 Crestone Peak Sangre de Cristo Range 14,300 ft 8 Mount Lincoln Mosquito Range 14,293 ft 9 Castle Peak Elk Mountains 14,279 ft 10 Grays Peak Front Range 14,278 ft 11 Mount Antero Sawatch Range 14,276 ft 12 Torreys Peak Front Range 14,275 ft 13 Quandary Peak Mosquito Range 14,271 ft 14 Mount Evans Front Range 14,271 ft 15 Longs Peak Front Range 14,259 ft 16 Mount Wilson San Miguel Mountains 14,252 ft 17 Mount Shavano Sawatch Range 14,231 ft 18 Mount Princeton Sawatch Range 14,204 ft 19 Mount Belford Sawatch Range 14,203 ft 20 Crestone Needle Sangre de Cristo Range 14,203 ft 21 Mount Yale Sawatch Range 14,200 ft 22 Mount Bross Mosquito Range 14,178 ft 23 Kit Carson Mountain Sangre de Cristo Range 14,171 ft 24 Maroon Peak Elk Mountains 14,163 ft 25 Tabeguache Peak Sawatch Range 14,162 ft 26 Mount Oxford Collegiate Peaks 14,160 ft 27 Mount Sneffels Sneffels Range 14,158 ft 28 Mount Democrat Mosquito Range 14,155 ft 29 Capitol Peak Elk Mountains 14,137 ft 30 Pikes Peak Front Range 14,115 ft 31 Snowmass Mountain Elk Mountains 14,099 ft 32 Windom Peak Needle Mountains 14,093 ft 33 Mount Eolus San Juan Mountains 14,090 ft 34 Challenger Point Sangre de Cristo Range 14,087 ft 35 Mount Columbia Sawatch Range -
Late Pleistocene Glacial Equilibrium-Line Altitudes in the Colorado Front Range: a Comparison of Methods
QUATERNARY RESEARCH l&289-310 (1982) Late Pleistocene Glacial Equilibrium-Line Altitudes in the Colorado Front Range: A Comparison of Methods THOMAS C. MEIERDING Department of Geography and Center For Climatic Research, University of Delaware, Newark, Delaware 19711 Received July 6, 1982 Six methods for approximating late Pleistocene (Pinedale) equilibrium-line altitudes (ELAs) are compared for rapidity of data collection and error (RMSE) from first-order trend surfaces, using the Colorado Front Range. Trend surfaces computed from rapidly applied techniques, such as glacia- tion threshold, median altitude of small reconstructed glaciers, and altitude of lowest cirque floors have relatively high RMSEs @I- 186 m) because they are subjectively derived and are based on small glaciers sensitive to microclimatic variability. Surfaces computed for accumulation-area ratios (AARs) and toe-to-headwall altitude ratios (THARs) of large reconstructed glaciers show that an AAR of 0.65 and a THAR of 0.40 have the lowest RMSEs (about 80 m) and provide the same mean ELA estimate (about 3160 m) as that of the more subjectively derived maximum altitudes of Pinedale lateral moraines (RMSE = 149 m). Second-order trend surfaces demonstrate low ELAs in the latitudinal center of the Front Range, perhaps due to higher winter accumulation there. The mountains do not presently reach the ELA for large glaciers, and small Front Range cirque glaciers are not comparable to small glaciers existing during Pinedale time. Therefore, Pleistocene ELA depression and consequent temperature depression cannot reliably be ascertained from the calcu- lated ELA surfaces. INTRODUCTION existed in alpine regions (Charlesworth, Glacial equilibrium-line altitudes (ELAs) 1957; ostrem, 1966; Flint, 1971; Andrews, have been widely used to infer present and 1975). -
Geochronology Database for Central Colorado
Geochronology Database for Central Colorado Data Series 489 U.S. Department of the Interior U.S. Geological Survey Geochronology Database for Central Colorado By T.L. Klein, K.V. Evans, and E.H. DeWitt Data Series 489 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior KEN SALAZAR, Secretary U.S. Geological Survey Marcia K. McNutt, Director U.S. Geological Survey, Reston, Virginia: 2010 For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment, visit http://www.usgs.gov or call 1-888-ASK-USGS For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprod To order this and other USGS information products, visit http://store.usgs.gov Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this report is in the public domain, permission must be secured from the individual copyright owners to reproduce any copyrighted materials contained within this report. Suggested citation: T.L. Klein, K.V. Evans, and E.H. DeWitt, 2009, Geochronology database for central Colorado: U.S. Geological Survey Data Series 489, 13 p. iii Contents Abstract ...........................................................................................................................................................1 Introduction.....................................................................................................................................................1 -
Grand Mesa, Uncompahgre and Gunnison National Forests
9 9 9 0 0 2 9 0 0 0 9 2 2 0 00 0 9000 0 0 0 9 9 000 0 2 9 0 200 9 0 96 0 2 18 0 0 0 0 9000 8800 8 90 C 94 0 5 o 871 00 k 1 9600 .1 a e 5 00 17 8 l e 8 8 9 9 16 9 2 C 400 r 0 13 00 00 00 20 0 9 r 940 9 C 14 200 0 0 18 e . 15 1A s e k a k e 8 l 7 40 l 00 4 e 0 90 0 r a 17 16 9400 15 0 0 14 C D 60 r 9 C Propose13d Whitehouse Additions to the 20 h 8 k W e c a t 8600 r t 5 x 87 i 7 1 Willow n o h 8 2 e 9200 D n F i 0 D 400 t . 0 Swamp 9 o e t n 2 1 s 9 n h Mt. Sneffels Wilderness, 2 800 8 00 w 0 B 7 e o o D 7 0 u W T i 2 1 V t s c 5 0 Moonshine a y 0 e 00 . h 6 6 2 n a 8 9 7 C April 8, 2016 c 9600 A e w Park r g 9600 C e d r Grand Mesa, Uncompahgre i e 0 8 0 e 8 0 1 k 5 e R 2 7 0 k 5 1 5 2 8 2 . -
36 CFR Ch. II (7–1–13 Edition) § 294.49
§ 294.49 36 CFR Ch. II (7–1–13 Edition) subpart shall prohibit a responsible of- Line Includes ficial from further restricting activi- Colorado roadless area name upper tier No. acres ties allowed within Colorado Roadless Areas. This subpart does not compel 22 North St. Vrain ............................................ X the amendment or revision of any land 23 Rawah Adjacent Areas ............................... X 24 Square Top Mountain ................................. X management plan. 25 Troublesome ............................................... X (d) The prohibitions and restrictions 26 Vasquez Adjacent Area .............................. X established in this subpart are not sub- 27 White Pine Mountain. ject to reconsideration, revision, or re- 28 Williams Fork.............................................. X scission in subsequent project decisions Grand Mesa, Uncompahgre, Gunnison National Forest or land management plan amendments 29 Agate Creek. or revisions undertaken pursuant to 36 30 American Flag Mountain. CFR part 219. 31 Baldy. (e) Nothing in this subpart waives 32 Battlements. any applicable requirements regarding 33 Beaver ........................................................ X 34 Beckwiths. site specific environmental analysis, 35 Calamity Basin. public involvement, consultation with 36 Cannibal Plateau. Tribes and other agencies, or compli- 37 Canyon Creek-Antero. 38 Canyon Creek. ance with applicable laws. 39 Carson ........................................................ X (f) If any provision in this subpart -
Profiles of Colorado Roadless Areas
PROFILES OF COLORADO ROADLESS AREAS Prepared by the USDA Forest Service, Rocky Mountain Region July 23, 2008 INTENTIONALLY LEFT BLANK 2 3 TABLE OF CONTENTS ARAPAHO-ROOSEVELT NATIONAL FOREST ......................................................................................................10 Bard Creek (23,000 acres) .......................................................................................................................................10 Byers Peak (10,200 acres)........................................................................................................................................12 Cache la Poudre Adjacent Area (3,200 acres)..........................................................................................................13 Cherokee Park (7,600 acres) ....................................................................................................................................14 Comanche Peak Adjacent Areas A - H (45,200 acres).............................................................................................15 Copper Mountain (13,500 acres) .............................................................................................................................19 Crosier Mountain (7,200 acres) ...............................................................................................................................20 Gold Run (6,600 acres) ............................................................................................................................................21 -
Grand Mesa, Uncompahgre, and Gunnison National Forests DRAFT Wilderness Evaluation Report August 2018
United States Department of Agriculture Forest Service Grand Mesa, Uncompahgre, and Gunnison National Forests DRAFT Wilderness Evaluation Report August 2018 Designated in the original Wilderness Act of 1964, the Maroon Bells-Snowmass Wilderness covers more than 183,000 acres spanning the Gunnison and White River National Forests. In accordance with Federal civil rights law and U.S. Department of Agriculture (USDA) civil rights regulations and policies, the USDA, its Agencies, offices, and employees, and institutions participating in or administering USDA programs are prohibited from discriminating based on race, color, national origin, religion, sex, gender identity (including gender expression), sexual orientation, disability, age, marital status, family/parental status, income derived from a public assistance program, political beliefs, or reprisal or retaliation for prior civil rights activity, in any program or activity conducted or funded by USDA (not all bases apply to all programs). Remedies and complaint filing deadlines vary by program or incident. Persons with disabilities who require alternative means of communication for program information (e.g., Braille, large print, audiotape, American Sign Language, etc.) should contact the responsible Agency or USDA’s TARGET Center at (202) 720-2600 (voice and TTY) or contact USDA through the Federal Relay Service at (800) 877-8339. Additionally, program information may be made available in languages other than English. To file a program discrimination complaint, complete the USDA Program Discrimination Complaint Form, AD-3027, found online at http://www.ascr.usda.gov/complaint_filing_cust.html and at any USDA office or write a letter addressed to USDA and provide in the letter all of the information requested in the form.