The New West: Landscapes Along the Colorado Front Range Pdf, Epub, Ebook
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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 . -
Taxonomic Overview of the Greater Fritillary Genus Speyeria Scudder
INSECTA MUNDI A Journal of World Insect Systematics 0090 Taxonomic overview of the greater fritillary genus Speyeria Scudder and the atlantis hesperis species complexes, with species accounts, type images, and relevant literature (Lepidoptera: Nymphalidae) James C. Dunford McGuire Center for Lepidoptera and Biodiversity Florida Museum of Natural History, University of Florida PO Box 112710, Gainesville, FL 326112710, USA Date of Issue: September 26, 2009 CENTER FOR SYSTEMATIC ENTOMOLOGY, INC., Gainesville, FL James C. Dunford Taxonomic overview of the greater fritillary genus Speyeria Scudder and the atlantis hesperis species complexes, with species accounts, type images, and relevant literature (Lepidoptera: Nymphalidae) Insecta Mundi 0090: 174 Published in 2009 by Center for Systematic Entomology, Inc. P. O. Box 141874 Gainesville, FL 326141874 U. S. A. http://www.centerforsystematicentomology.org/ Insecta Mundi is a journal primarily devoted to insect systematics, but articles can be published on any nonmarine arthropod taxon. Manuscripts considered for publication include, but are not limited to, systematic or taxonomic studies, revisions, nomenclatural changes, faunal studies, book reviews, phylo genetic analyses, biological or behavioral studies, etc. Insecta Mundi is widely distributed, and refer- enced or abstracted by several sources including the Zoological Record, CAB Abstracts, etc. As of 2007, Insecta Mundi is published irregularly throughout the year, not as quarterly issues. As manuscripts are completed they are published and given an individual number. Manuscripts must be peer reviewed prior to submission, after which they are again reviewed by the editorial board to insure quality. One author of each submitted manuscript must be a current member of the Center for System- atic Entomology. -
Estimating Natural Visibility Conditions Under the Regional Haze Rule EPA-454/B-03-005 September 2003
Guidance for Estimating Natural Visibility Conditions Under the Regional Haze Rule EPA-454/B-03-005 September 2003 Guidance for Estimating Natural Visibility Conditions Under the Regional Haze Program Contract No. 68-D-02-0261 Work Order No. 1-06 U.S. Environmental Protection Agency Office of Air Quality Planning and Standards Emissions, Monitoring and Analysis Division Air Quality Trends Analysis Group Research Triangle Park, NC DISCLAIMER This report is a work prepared for the United States Government by Battelle. In no event shall either the United States Government or Battelle have any responsibility or liability for any consequences of any use, misuse, inability to use, or reliance upon the information contained herein, nor does either warrant or otherwise represent in any way the accuracy, adequacy, efficacy, or applicability of the contents hereof. ACKNOWLEDGMENTS The Environmental Protection Agency wishes to acknowledge the assistance and input provided by the following advisors in the preparation of this guidance document: Rodger Ames, National Park Service, Cooperative Institute for Research in the Atmosphere (CIRA); Shao-Hang Chu, USEPA; Rich Damberg, USEPA; Tammy Eagan, Florida Dept. of Environmental Protection; Neil Frank, USEPA; Eric Ginsburg, USEPA; Dennis Haddow, U.S. Fish and Wildlife Service; Ann Hess, Colorado State University; Hari Iyer, Dept. of Statistics, Colorado State University; Mike Koerber, Lake Michigan Air Directors Consortium; Bill Leenhouts, U.S. Fish and Wildlife Service; William Malm, National Park Service (CIRA); Debbie Miller, National Park Service; Tom Moore , Western Regional Air Partnership; Janice Peterson, U.S. Department of Agriculture, Forest Service; Marc Pitchford, National Oceanic and Atmospheric Administration, Air Resources Laboratory; Rich Poirot, State of Vermont, Dept. -
Thousands Hooked by Fishing Expo Larimer County Expo Offers Tips and Wares for Northern Colorado Anglers by Alex Burness Reporter-Herald Staff Writer
Thousands hooked by Fishing Expo Larimer County expo offers tips and wares for Northern Colorado anglers By Alex Burness Reporter-Herald Staff Writer POSTED: 03/09/2014 07:28:02 PM MDT Jim Strawbridge of Frederick, left, and Colten Mohr, 6, of Fort Collins, practice casting lines, while Colten's mother Carol Mohr looks on at the 10th annual Larimer County Fishing Expo on Sunday afternoon. (Alex Burness / Loveland Reporter-Herald) According to Morrison's Rob Schmac, one does not simply choose to love fishing. "You either are a fisherman or you aren't," he said. "It's in your genetics." If Schmac is right, the gene must be present in a whole lot of Coloradans, considering nearly 3,500 people packed The Ranch's First National Bank Building for this weekend's 10th annual Larimer County Fishing Expo. The free, two-day event also attracted more than 50 vendors, plus several of Colorado's most expert anglers, who taught seminars on topics that included "Fishing from Kayaks and Small Boats," "Choosing the Right Baits for Any Time of Year" and "Latest Technology in Fishing Sonars." The event originally started as a way to teach locals how to fish in reservoirs, since the Front Range and most of Eastern Colorado have no natural lakes. "If you're fishing around here, chances are someone dug a hole," said Chad LaChance, a professional angler and host of television's "Fishful Thinker," which air on World Fishing Network and Altitude Sports. The lack of natural lakes in the area, however, isn't all bad news. -
5-Year Review Short Form Summary
5-Year Review Short Form Summary Species Reviewed: Preble’s meadow jumping mouse (Zapus hudsonius preblei) FR Notice Announcing Initiation of This Review: March 31, 2004. 90-Day Finding for a Petition to Delist the Preble’s Meadow Jumping Mouse in Colorado and Wyoming and Initiation of a 5-Year Review (69 FR 16944-16946). Lead Region/Field Office: Region 6, Seth Willey, Recovery Coordinator, 303-236-4257. Colorado Field Office, Susan Linner, Field Supervisor, 303-236-4773. Name of Reviewer: Peter Plage, Colorado Field Office, 303-236-4750. Cooperating Field Office: Wyoming Field Office, Brian Kelly, Field Supervisor, 307-772-2374. Current Classification: Threatened rangewide. Current Recovery Priority Number: 9c. This recovery priority number is indicative of a subspecies facing a moderate degree of threat, a high recovery potential, and whose recovery may be in conflict with construction or other development projects or other forms of economic activity. Methodology used to complete the review: The 5-year review for the Preble’s meadow jumping mouse (Preble’s) was accomplished through the petition and rulemaking process. On December 23, 2003, we received two nearly identical petitions from the State of Wyoming’s Office of the Governor and from Coloradans for Water Conservation and Development, seeking to remove the Preble’s from the Federal List of Endangered and Threatened Wildlife. Both petitions were similar and maintained that the Preble’s should be delisted based on the taxonomic revision, and based on new distribution, abundance, and trends data that suggested the Preble’s was no longer threatened. On March 31, 2004, we published a notice announcing a 90-day finding that the petitions presented substantial information indicating that the petitioned action may be warranted and initiated a 5-year review (69 FR 16944-16946). -
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. -
NORTH TABLE MOUNTAIN ECOLOGICAL RESERVE Land Management Plan
NORTH TABLE MOUNTAIN ECOLOGICAL RESERVE Land Management Plan Prepared for: December 2006 State of California The Resources Agency Department of Fish and Game NORTH TABLE MOUNTAIN ECOLOGICAL RESERVE Land Management Plan Prepared for: December 2006 State of California The Resources Agency Department of Fish and Game 8950 Cal Center Drive Building 3, Suite 300 Sacramento, CA 95826 916.564.4500 www.esassoc.com Los Angeles Oakland Orlando Petaluma Portland San Francisco Seattle Tampa 204427 ESA J MORTH TABLE MOUNTAIN ECOLOGICAL RESERVE Land Management Plan Approved by: Acting RegionalTftartager / Date _nhltn Acting Deputy Direaor for Regional Operations 'Date TABLE OF CONTENTS North Table Mountain Ecological Reserve Land Management Plan Page 1 Summary 1-1 2 Introduction 2-1 Purpose of Acquisition 2-1 Acquisition History 2-1 Purpose of This Management Plan 2-1 3 Property Description 3-1 Geographical Setting 3-1 Property Boundaries and Adjacent Lands 3-1 Geology, Soils, Climate, and Hydrology 3-1 Cultural Features 3-11 4 Vegetation Types, Habitat, and Species Descriptions 4-1 Vegetation Types and Habitats 4-1 Special-Status Species 4-5 5 Management Goals and Environmental Impacts 5-1 Definition of Terms Used in This Plan 5-1 Biological Elements: Goals, Objectives, and Environmental Impacts 5-1 Public Use Elements: Goals and Environmental Impacts 5-5 Facility Maintenance Elements: Goals and Environmental Impacts 5-6 6 Operations and Maintenance Summary 6-1 Operations and Maintenance Tasks to Implement Plan 6-1 Existing Staff and Additional Personnel -
COLORADO CONTINENTAL DIVIDE TRAIL COALITION VISIT COLORADO! Day & Overnight Hikes on the Continental Divide Trail
CONTINENTAL DIVIDE NATIONAL SCENIC TRAIL DAY & OVERNIGHT HIKES: COLORADO CONTINENTAL DIVIDE TRAIL COALITION VISIT COLORADO! Day & Overnight Hikes on the Continental Divide Trail THE CENTENNIAL STATE The Colorado Rockies are the quintessential CDT experience! The CDT traverses 800 miles of these majestic and challenging peaks dotted with abandoned homesteads and ghost towns, and crosses the ancestral lands of the Ute, Eastern Shoshone, and Cheyenne peoples. The CDT winds through some of Colorado’s most incredible landscapes: the spectacular alpine tundra of the South San Juan, Weminuche, and La Garita Wildernesses where the CDT remains at or above 11,000 feet for nearly 70 miles; remnants of the late 1800’s ghost town of Hancock that served the Alpine Tunnel; the awe-inspiring Collegiate Peaks near Leadville, the highest incorporated city in America; geologic oddities like The Window, Knife Edge, and Devil’s Thumb; the towering 14,270 foot Grays Peak – the highest point on the CDT; Rocky Mountain National Park with its rugged snow-capped skyline; the remote Never Summer Wilderness; and the broad valleys and numerous glacial lakes and cirques of the Mount Zirkel Wilderness. You might also encounter moose, mountain goats, bighorn sheep, marmots, and pika on the CDT in Colorado. In this guide, you’ll find Colorado’s best day and overnight hikes on the CDT, organized south to north. ELEVATION: The average elevation of the CDT in Colorado is 10,978 ft, and all of the hikes listed in this guide begin at elevations above 8,000 ft. Remember to bring plenty of water, sun protection, and extra food, and know that a hike at elevation will likely be more challenging than the same distance hike at sea level. -
Affected Bighorn Sheep Herds S-22 San Luis Peak Sub-Herd
On June 25th and 26th 2012, Seth Ratering USFS Range Tech, Doug Clark USFS Wildlife Tech, and Kevin Suellentrop USFS Wildlife Tech, inspected Table Mountain, Snow Mesa and the Ouray Sheep allotments. The intent of the visit was to locate bighorn sheep, collect bighorn scat, to get familiar with the allotments, and also to check on the ground conditions. No bighorn sheep were spotted during this visit although they are known to be present. We did collect one sample of possible bighorn sheep scat. Determining whether or not the scat was in fact bighorn sheep was difficult due to high population of elk and deer, who also had scattered scat in the whole area. The drought conditions are extremely evident around the whole area, especially above treeline where contact with moisture was limited. Bog sedge (Kobresia myosuroides) was extremely dry and showed very little recent production. It appears it produced early and was able to go to seed, but is now almost completely browned (photo 1). Various forbs are also very unproductive. The only available water on these high mesas is in the lakes and kettles and the few boggy areas (photo 2). During our visit, the mornings did not even produce dew on the vegetation. The east side of the Miners pasture will not be used this year. Instead, the Ouray allotment will be used in the beginning of the grazing season. This allotment has not been used for a number of seasons and shows signs of needing some disturbance. The amount of residual plant matter is beginning to hamper plant vigor in areas of high production. -
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 -
Summits on the Air – ARM for USA - Colorado (WØC)
Summits on the Air – ARM for USA - Colorado (WØC) Summits on the Air USA - Colorado (WØC) Association Reference Manual Document Reference S46.1 Issue number 3.2 Date of issue 15-June-2021 Participation start date 01-May-2010 Authorised Date: 15-June-2021 obo SOTA Management Team Association Manager Matt Schnizer KØMOS Summits-on-the-Air an original concept by G3WGV and developed with G3CWI Notice “Summits on the Air” SOTA and the SOTA logo are trademarks of the Programme. This document is copyright of the Programme. All other trademarks and copyrights referenced herein are acknowledged. Page 1 of 11 Document S46.1 V3.2 Summits on the Air – ARM for USA - Colorado (WØC) Change Control Date Version Details 01-May-10 1.0 First formal issue of this document 01-Aug-11 2.0 Updated Version including all qualified CO Peaks, North Dakota, and South Dakota Peaks 01-Dec-11 2.1 Corrections to document for consistency between sections. 31-Mar-14 2.2 Convert WØ to WØC for Colorado only Association. Remove South Dakota and North Dakota Regions. Minor grammatical changes. Clarification of SOTA Rule 3.7.3 “Final Access”. Matt Schnizer K0MOS becomes the new W0C Association Manager. 04/30/16 2.3 Updated Disclaimer Updated 2.0 Program Derivation: Changed prominence from 500 ft to 150m (492 ft) Updated 3.0 General information: Added valid FCC license Corrected conversion factor (ft to m) and recalculated all summits 1-Apr-2017 3.0 Acquired new Summit List from ListsofJohn.com: 64 new summits (37 for P500 ft to P150 m change and 27 new) and 3 deletes due to prom corrections.