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Baylor Geological Studies
BAYLORGEOLOGICA L STUDIES PAUL N. DOLLIVER Creative thinking is more important than elaborate FRANK PH.D. PROFESSOR OF GEOLOGY BAYLOR UNIVERSITY 1929-1934 Objectives of Geological Training at Baylor The training of a geologist in a university covers but a few years; his education continues throughout his active life. The purposes of train ing geologists at Baylor University are to provide a sound basis of understanding and to foster a truly geological point of view, both of which are essential for continued professional growth. The staff considers geology to be unique among sciences since it is primarily a field science. All geologic research in cluding that done in laboratories must be firmly supported by field observations. The student is encouraged to develop an inquiring ob jective attitude and to examine critically all geological concepts and principles. The development of a mature and professional attitude toward geology and geological research is a principal concern of the department. Frontis. Sunset over the Canadian River from near the abandoned settlement of Old Tascosa, Texas. The rampart-like cliffs on the horizon first inspired the name "Llano Estacado" (Palisaded Plain) among Coronado's men. THE BAYLOR UNIVERSITY PRESS WACO, TEXAS BAYLOR GEOLOGICAL STUDIES BULLETIN NO. 42 Cenozoic Evolution of the Canadian River Basin Paul N. DoUiver BAYLOR UNIVERSITY Department of Geology Waco, Texas Spring 1984 Baylor Geological Studies EDITORIAL STAFF Jean M. Spencer Jenness, M.S., Editor environmental and medical geology O. T. Ph.D., Advisor, Cartographic Editor what have you Peter M. Allen, Ph.D. urban and environmental geology, hydrology Harold H. Beaver, Ph.D. -
Denudation History and Internal Structure of the Front Range and Wet Mountains, Colorado, Based on Apatite-Fission-Track Thermoc
NEW MEXICO BUREAU OF GEOLOGY & MINERAL RESOURCES, BULLETIN 160, 2004 41 Denudation history and internal structure of the Front Range and Wet Mountains, Colorado, based on apatitefissiontrack thermochronology 1 2 1Department of Earth and Environmental Science, New Mexico Institute of Mining and Technology, Socorro, NM 87801Shari A. Kelley and Charles E. Chapin 2New Mexico Bureau of Geology and Mineral Resources, New Mexico Institute of Mining and Technology, Socorro, NM 87801 Abstract An apatite fissiontrack (AFT) partial annealing zone (PAZ) that developed during Late Cretaceous time provides a structural datum for addressing questions concerning the timing and magnitude of denudation, as well as the structural style of Laramide deformation, in the Front Range and Wet Mountains of Colorado. AFT cooling ages are also used to estimate the magnitude and sense of dis placement across faults and to differentiate between exhumation and faultgenerated topography. AFT ages at low elevationX along the eastern margin of the southern Front Range between Golden and Colorado Springs are from 100 to 270 Ma, and the mean track lengths are short (10–12.5 µm). Old AFT ages (> 100 Ma) are also found along the western margin of the Front Range along the Elkhorn thrust fault. In contrast AFT ages of 45–75 Ma and relatively long mean track lengths (12.5–14 µm) are common in the interior of the range. The AFT ages generally decrease across northwesttrending faults toward the center of the range. The base of a fossil PAZ, which separates AFT cooling ages of 45– 70 Ma at low elevations from AFT ages > 100 Ma at higher elevations, is exposed on the south side of Pikes Peak, on 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. -
Chapter 5 – Complexes: Area-Specific Management Recommendations
Wild Connections Conservation Plan for the Pike & San Isabel National Forests Chapter 5 – Complexes: Area-Specific Management Recommendations This section contains our detailed, area-specific proposal utilizing the theme based approach to land management. As an organizational tool, this proposal divides the Pike-San Isabel National Forest into eleven separate Complexes, based on geo-physical characteristics of the land such as mountain ranges, parklands, or canyon systems. Each complex narrative provides details and justifications for our management recommendations for specific areas. In order to emphasize the larger landscape and connectivity of these lands with the ecoregion, commentary on relationships to adjacent non-Forest lands are also included. Evaluations of ecological value across public and private lands are used throughout this chapter. The Colorado Natural Heritage Programs rates the biodiversity of Potential Conservation Areas (PCAs) as General Biodiversity, Moderate, High, Very High, and Outranking Significance. The Nature Conservancy assesses the conservation value of its Conservation Blueprint areas as Low, Moderately Low, Moderate, Moderately High and High. The Southern Rockies Ecosystem Project's Wildlands Network Vision recommends land use designations of Core Wilderness, Core Agency, Low and Moderate Compatible Use, and Wildlife Linkages. Detailed explanations are available from the respective organizations. Complexes – Summary List by Watershed Table 5.1: Summary of WCCP Complexes Watershed Complex Ranger District -
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 -
Climate on the Blanca Massif, Sangre De Cristo Mountains, Colorado, USA, During the Last Glacial Maximum
quaternary Article Climate on the Blanca Massif, Sangre de Cristo Mountains, Colorado, USA, during the Last Glacial Maximum Keith A. Brugger 1,* , Eric M. Leonard 2, Kurt A. Refsnider 3 and Peter Dolan 4 1 Geology Discipline, University of Minnesota, Morris, MN 56267, USA 2 Department of Geology, Colorado College, Colorado Springs, CO 80903, USA; [email protected] 3 101 W Goodwin St #3849, Prescott, AZ 86302, USA; [email protected] 4 Statistics and Computer Science Disciplines, University of Minnesota, Morris, MN 56267, USA; [email protected] * Correspondence: [email protected] Abstract: Temperature-index modeling is used to determine the magnitude of temperature de- pression on the Blanca Massif, Colorado, required to maintain steady-state mass balances of nine reconstructed glaciers at their extent during the Last Glacial Maximum (LGM). The mean temperature depression thus determined is ~8.6 +0.7/−0.9 ◦C where the uncertainties account for those inherent in the glacier reconstructions, in model parameters (e.g., melt factors), and possible modest changes in LGM precipitation. Associated equilibrium-line altitudes (ELAs) exhibit a statistically significant directional dependency being lower toward the north and east. Under the assumption that regional temperature change was uniform, required changes in precipitation vary systematically—also exhibit- ing a directional dependency coinciding with that in ELAs—and indicate increases (over modern) occurred on the eastern side of the massif while decreases occurred on the western side. This disparity represents a strengthening of a precipitation asymmetry, particularly winter precipitation, which Citation: Brugger, K.A.; Leonard, E.M.; Refsnider, K.A.; Dolan, P. -
Pikes Peak 1911 1923 2 William F. Ervin (#1 & #2 Tie) Pikes Peak 1911 1923 3 Albert Ellingwood 4 Mary Cronin Longs Peak 1921 9 1934 5 Carl Melzer 1937 6 Robert B
EVERYONE WHO HAS COMPLETED THE COLORADO FOURTEENERS (By Year of Completion) 1 Carl Blaurock (#1 & #2 tie) Pikes Peak 1911 1923 2 William F. Ervin (#1 & #2 tie) Pikes Peak 1911 1923 3 Albert Ellingwood 4 Mary Cronin Longs Peak 1921 9 1934 5 Carl Melzer 1937 6 Robert B. Melzer 1937 7 Elwyn Arps Eolus, Mt. 1920 7 1938 8 Joe Merhar Pyramid Peak 8 1938 9 O. P. Settles Longs Peak 1927 7 1939 10 Harry Standley Elbert, Mt. 1923 9 1939 11 Whitney M. Borland Pikes Peak 6 1941 12 Vera DeVries Longs Peak 1936 Kit Carson Peak 8 1941 13 Robert M. Ormes Pikes Peak Capitol Peak 8 1941 14 Jack Graham 9 1941 15 John Ambler 9 1943 16 Paul Gorham Pikes Peak 1926 8 1944 17 Ruth Gorham Grays Peak 1933 8 1944 18 Henry Buchtel Longs Peak 1946 19 Herb Hollister Longs Peak 1927 7 1947 20 Roy Murchison Longs Peak 1908 8 1947 21 Evelyn Runnette Longs Peak 1931 Uncompahgre Peak 9 1947 22 Marian Rymer Longs Peak 1926 Crestones 9 1948 23 Charles Rymer Longs Peak 1927 Crestones 9 1948 24 Nancy E. Nones (Perkins) Quandary 1937 Eolus, Mt. 9 1948 25 John Spradley Longs Peak 1943 7 1949 26 Eliot Moses Longs Peak 1921 7 1949 27 Elizabeth S. Cowles Lincoln, Mt. 9 1932 Wetterhorn Peak 9 1949 28 Dorothy Swartz Crestones 8 1950 29 Robert Swartz Bross, Mt. 1941 Crestones 8 1950 30 Ted Cooper Longs Peak 8 1950 31 Stirling Cooper Longs Peak 8 1950 32 Harold Brewer Longs Peak 1937 El Diente 9 1950 33 Wilbur F. -
The Geologic Story of Colorado's Sangre De Cristo Range
The Geologic Story of Colorado’s Sangre de Cristo Range Circular 1349 U.S. Department of the Interior U.S. Geological Survey Cover shows a landscape carved by glaciers. Front cover, Crestone Peak on left and the three summits of Kit Carson Mountain on right. Back cover, Humboldt Peak on left and Crestone Needle on right. Photograph by the author looking south from Mt. Adams. The Geologic Story of Colorado’s Sangre de Cristo Range By David A. Lindsey A description of the rocks and landscapes of the Sangre de Cristo Range and the forces that formed them. Circular 1349 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 This and other USGS information products are available at http://store.usgs.gov/ U.S. Geological Survey Box 25286, Denver Federal Center Denver, CO 80225 To learn about the USGS and its information products visit http://www.usgs.gov/ 1-888-ASK-USGS 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: Lindsey, D.A., 2010, The geologic story of Colorado’s Sangre de Cristo Range: U.S. Geological Survey Circular 1349, 14 p. iii Contents The Oldest Rocks ...........................................................................................................................................1 -
Crestone Peak … and a Self Rescue!
Crestone Peak … and a Self Rescue! Exposure: Summit Elev.: 14,294 feet Trailhead Elev.: 9,900 feet Elevation Gain: 5,700 feet starting at upper 4wd trailhead 3850 feet starting at S. Colony Lake camp Roundtrip: 14 miles starting at upper 4wd TH (9,900) 5 miles from S. Colony Lake camp Climbers: Rick Crandall, Rick Peckham 8/15/2015 Crestone Peak, or “The Peak” as known among many climbers, is one of the “double-black diamond” 14ers for climbers. It is located in the Sangre de Cristo range near to the town of Crestone. It and its companion fourteener, Crestone Needle were the last of all the fourteeners to be scaled back in the 1920’s. This remote and rugged mountain was once thought impossible to climb. The name comes from the famous “crete du coq” (cocks comb) on the Italian side of the Matterhorn which was anglicized to Crestone. (From Fourteen Thousand Feet, by John L. Jerome Hart, June, 1925) The easiest route is not the shortest or most direct. 800 feet of elevation must be lost and regained over Broken Hand Pass, which is a 1500’ climb from the South Colony Lake, and then another 2,000 feet must be climbed up the sustained Red Couloir to the summit approach. All climbing is rated at least Class 3. Considerable climbing experience is recommended before attempting this formidable mountain. Crestone Peak – a magnificent mountain. We had plenty of warnings about this mountain, including from Mountain Rescue as you see in the unfolding story. “Crestone Peak is one of the more dangerous fourteener climbs in Colorado; accidents occur often in the Crestones, some caused by falls and others by lightning (a daily summer occurrence in the Sangre de Cristos).” From Summit Post: Adding to the difficulty of the climb is getting there. -
Geographic Names
GEOGRAPHIC NAMES CORRECT ORTHOGRAPHY OF GEOGRAPHIC NAMES ? REVISED TO JANUARY, 1911 WASHINGTON GOVERNMENT PRINTING OFFICE 1911 PREPARED FOR USE IN THE GOVERNMENT PRINTING OFFICE BY THE UNITED STATES GEOGRAPHIC BOARD WASHINGTON, D. C, JANUARY, 1911 ) CORRECT ORTHOGRAPHY OF GEOGRAPHIC NAMES. The following list of geographic names includes all decisions on spelling rendered by the United States Geographic Board to and including December 7, 1910. Adopted forms are shown by bold-face type, rejected forms by italic, and revisions of previous decisions by an asterisk (*). Aalplaus ; see Alplaus. Acoma; township, McLeod County, Minn. Abagadasset; point, Kennebec River, Saga- (Not Aconia.) dahoc County, Me. (Not Abagadusset. AQores ; see Azores. Abatan; river, southwest part of Bohol, Acquasco; see Aquaseo. discharging into Maribojoc Bay. (Not Acquia; see Aquia. Abalan nor Abalon.) Acworth; railroad station and town, Cobb Aberjona; river, IVIiddlesex County, Mass. County, Ga. (Not Ackworth.) (Not Abbajona.) Adam; island, Chesapeake Bay, Dorchester Abino; point, in Canada, near east end of County, Md. (Not Adam's nor Adams.) Lake Erie. (Not Abineau nor Albino.) Adams; creek, Chatham County, Ga. (Not Aboite; railroad station, Allen County, Adams's.) Ind. (Not Aboit.) Adams; township. Warren County, Ind. AJjoo-shehr ; see Bushire. (Not J. Q. Adams.) Abookeer; AhouJcir; see Abukir. Adam's Creek; see Cunningham. Ahou Hamad; see Abu Hamed. Adams Fall; ledge in New Haven Harbor, Fall.) Abram ; creek in Grant and Mineral Coun- Conn. (Not Adam's ties, W. Va. (Not Abraham.) Adel; see Somali. Abram; see Shimmo. Adelina; town, Calvert County, Md. (Not Abruad ; see Riad. Adalina.) Absaroka; range of mountains in and near Aderhold; ferry over Chattahoochee River, Yellowstone National Park. -
Custer County Fracking Forum
Potential Local Impact of Oil and Gas Exploration, Fracking & Extraction in the Wet Mountain Valley January 22, 2012, 6-7:30 PM West Custer County Library Community Room, Westcliffe, CO Co-sponsors: CSU Extension Service Custer County Conservation District Good Old Broads for Wilderness San Isabel Land Protection Trust Sustainable Ways West Custer County Library Photo: John Fielder Mineral Development in Custer County • Natural resources of Custer County • Mineral Development as a land use • Location of nearby oil & gas wells • Private property rights & mineral estates Ben Lenth Executive Director Mission: San Isabel Land Protection Trust protects ranch, farm and forest lands, wildlife habitat, scenic views for public enjoyment, and historic resources. Natural Resources of Custer County • Water • Agricultural land How can we ensure • Minerals the benefits of local resource utilization • Wildlife outweigh the costs? • Sunshine • Beauty Do certain land uses • Oil & gas? improve or degrade our quality of life? History of Mineral Development • Silver: 1870 - on, revisited in the 1960s- 1970s; lots of silver remains • Lead, Zinc, Gold, Copper, Molybdenum • Exploration for other materials Courtesy of Chris Eisinger, CGS Energy production: costs & benefits • Central to the economy and our lifestyles • “Energy footprint” • Energy production is diversifying... but every type of energy production has social and environmental impacts. Courtesy of Chris Eisinger, CGS Courtesy of Chris Eisinger, CGS Courtesy of Chris Eisinger, CGS Courtesy of Chris Eisinger, CGS Courtesy of Chris Eisinger, CGS Mineral Rights • Split Estate: Any circumstance where rights to the surface and rights to the minerals are owned separately. • Like any private property right, mineral rights can be bought, sold, leased or encumbered separately from the rest of the property. -
Sangre De Cristo Salida and San Carlos Wet Mountains San Carlos Spanish Peaks San Carlos
Wild Connections Conservation Plan for the Pike & San Isabel National Forests Chapter 5 – Complexes: Area-Specific Management Recommendations This section contains our detailed, area-specific proposal utilizing the theme based approach to land management. As an organizational tool, this proposal divides the Pike-San Isabel National Forest into eleven separate Complexes, based on geo-physical characteristics of the land such as mountain ranges, parklands, or canyon systems. Each complex narrative provides details and justifications for our management recommendations for specific areas. In order to emphasize the larger landscape and connectivity of these lands with the ecoregion, commentary on relationships to adjacent non-Forest lands are also included. Evaluations of ecological value across public and private lands are used throughout this chapter. The Colorado Natural Heritage Programs rates the biodiversity of Potential Conservation Areas (PCAs) as General Biodiversity, Moderate, High, Very High, and Outranking Significance. The Nature Conservancy assesses the conservation value of its Conservation Blueprint areas as Low, Moderately Low, Moderate, Moderately High and High. The Southern Rockies Ecosystem Project's Wildlands Network Vision recommends land use designations of Core Wilderness, Core Agency, Low and Moderate Compatible Use, and Wildlife Linkages. Detailed explanations are available from the respective organizations. Complexes – Summary List by Watershed Table 5.1: Summary of WCCP Complexes Watershed Complex Ranger District