Pronghorn 2020 Post-Hunt Population Estimates
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Geology, Petrochemistry, and Time-Space Evolution of the Cripple Creek District, Colorado
The Geological Society of America Field Guide 10 2007 Geology, petrochemistry, and time-space evolution of the Cripple Creek district, Colorado Eric P. Jensen* Mark D. Barton* Center for Mineral Resources, Department of Geosciences, University of Arizona, Tucson, Arizona 85719, USA ABSTRACT The Cripple Creek district is renowned for epithermal gold telluride veins which have produced over 22 million ounces of gold from an intensely altered diatreme complex (total production + economic resources of >1000 tons). The district is also renowned for its association with a rare class of alkaline igneous rocks. The volcanism at Cripple Creek was part of a regionally extensive episode of Oligocene magma- tism, including large volumes of calc-alkaline rocks and smaller, but widely distrib- uted alkaline centers. Amongst the mid-Tertiary alkaline intrusive complexes, only Cripple Creek is associated with a giant (>500 ton) gold deposit. Further study of the magmatic and hydrothermal evolution of these systems will be necessary to explain this apparent disparity in gold enrichment. Cripple Creek’s gold mineralization principally occurs as telluride minerals hosted by swarms of narrow veins. Most geological studies over the last century have focused on the high-grade veins and to a lesser degree, adjacent hydrothermal altera- tion, but metasomatism is now shown to be broadly developed and demonstrably accompanied many events throughout the evolution of the igneous complex. Altera- tion types ranged from minor early pyroxene-stable varieties through various biotite- bearing assemblages into voluminous K-feldspar stable types. Hydrolytic (acid) styles of alteration are present but minor. Economic gold mineralization is intimately asso- ciated only with late, voluminous K-feldspar-pyrite alteration which affected >5 km3 of the explored portion (upper 1 km) of the complex. -
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26 287 385 Wheatland Scotts Bluff NM 30 Res. 85 Rawlins Gering 80 25 Bridgeport 130 Harrisburg Arthur 80 385 Green River North Platte R. 26 789 80 Oshkosh 130 Laramie 191 Lake 230 Kimball McConaugh 30 Lodgepole Creek Flaming 80 Sidney Gorge 230 Cheyenne Ogallala Reservoir Wyoming 70 N ebraska Chappell 30 80 Manila A BCDEFG230 HIJKL MNOP Laramie R. Ovid Big Creek Virginia Dale Peetz Julesburg Res. Lake Julesburg 1 Sedgwick 125 Pawnee National Grassland South Platte Grant Glendevey Livermore Pawnee North 138 Crook Delany Butte Red Feather Lakes 25 85 71 Sterling River Trail Lake Pioneer Res. Iliff Clark Elk R. N. Platte R. Walden Res. Canadian R. Cache La Poudre R. Walden 287 Wellington Nunn Trails Fleming 318 13 14 Rustic Pierce Green R. Bellvue Haxtun Michigan R. 14 Sterling Little Snake R. Cache la Poudre- Fort Collins Ault 14 6 Dinosaur NM Craig North Park Horsetooth 144 2 Maybell Hayden Res. Timnath Eaton Holyoke 6 Imperial 40 Steamboat Springs Trail Ridge Road Boyd Windsor 392 Merino Vernal Yampa R. Lake Drake Frenchman Creek 14 Loveland Greeley Jackson 52 Prewitt Res. 76 40 Rocky 34 Kersey Riverside Res. Estes Park Johnstown Evans Res. 131 125 Mountain NP Carter Milliken La Salle Log Lane Hilrose 13 Lake 34 Village 385 Morrison Creek 7 25 Gilcrest South Platte R. Green R. Dinosaur Oak Creek Grand Lake 36 Berthoud Empire 59 Milton Res. Brush Stagecoach Grand Lyons Mead Lake Lake Allenspark 85 Res. Wiggins 3 White R. Flat Tops Trail Res. South Platte R. 34 Akron Otis Granby 66 Platteville Fort Morgan Yuma 64 Peak to Peak Longmont 76 Eckley 64 Yampa Hot Sulphur 72 Frederick 34 134 Springs Highway Jamestown Fort Lupton White R. -
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The 2019 Partners List Download
2019 Partners A Precious Child Adams County Parks and Open Space Arapahoe Community College ARC Arizona Conservation Corps Arkansas River Watershed Invasive Plants Partnership Auraria Campus: Auraria Sustainable Campus Program Aurora Public Schools Aurora Water Barr Lake State Park Bayaud Enterprises Bessie’s Hope Black Hills Credit Union Bobcat of the Rockies Boomers Leading Change Boys & Girls Clubs of Metro Denver Brady Exploration School Brighton Heritage Academy Bureau of Land Management – Royal Gorge Field Office Cal-Wood Education Center Cañon City Area Recreation and Park District Castlewood Canyon State Park Center for Employment Opportunities Central Colorado Conservancy Chatfield State Park Cherry Creek State Park Cheyenne Mountain State Park Children's Farm City and County of Broomfield Open Space and Trails City and County of Denver City and County of Denver Parks and Recreation City of Aurora Generation WILD City of Aurora Parks, Recreation and Open Space City of Boulder Open Space and Mountain Parks City of Brighton Parks and Recreation City of Brighton Parks, Open Space and Forestry City of Colorado Springs Parks, Trails and Open Space City of Commerce City-- Parks, Recreation and Golf City of Manitou Springs City of Pueblo City of Thornton City of Trinidad City of Wheat Ridge Parks and Recreation Colavria Hospitality Colorado Building and Construction Trades Council Colorado Cardiac CPR Colorado College: Environmental Studies Program Colorado Finishing Trades Institute Colorado High School Charter Colorado Mesa University: -
To: Colorado Parks & Wildlife Commission C/O Commission
To: Colorado Parks & Wildlife Commission c/o Commission Assistant Colorado Parks and Wildlife 1313 Sherman St., Denver, CO 80203 [email protected] Cc: Dan Prenzlow, Colorado Parks and Wildlife Director Brett Ackerman, Colorado Parks and Wildlife Southeast Regional Manager Date: August 27, 2020 Subject: Hunting/Fishing License requirement to access State Wildlife Areas near Salida, CO Greetings Commissioners and Mr. Ackerman, On behalf of the City of Salida, I am writing to express our concern regarding the new regulation requiring the purchase of a hunting or fishing license for the use of walking trails and other recreation in the State Wildlife Areas (SWA’s). Specifically, we would like to discuss solutions for the Sands and Frantz Lake Wildlife Areas adjacent to Salida, CO. Unlike other more remote SWA’s, Sands and Franz Lakes are next to the City of Salida and connect directly with the Salida Trail System. They are utilized daily by residents and visitors for walking, jogging, wildlife viewing and other forms of non-consumptive recreation. We understand and support the desire to protect Wildlife habitat on these properties but we feel the new regulation inequitably restricts public access and will not serve to resolve the management issues at these properties. Over the past 30 years, the City, County, groups and individuals have helped plan and executed improvements to these areas involving a strong partnership with the former local Colorado Division of Wildlife (DOW) and now the Colorado Parks & Wildlife (CPW). Non-profit organizations include Salida-area Parks, Open-space & Trails (SPOT), Greater Arkansas River Nature Association (GARNA), Central Colorado Conservancy, Trout Unlimited and the Southwest Conservation Youth Corps (SCC). -
Water-Quality Characteristics of Selected Lakes and Reservoirs in Colorado
WATER-QUALITY CHARACTERISTICS OF SELECTED LAKES AND RESERVOIRS IN COLORADO GEOLOGICAL SURVEY Water-Resources Investigations Open-File Report 80-436 Prepared in cooperation with the Colorado Department of Natural Resources Colorado Water Conservation Board WATER-QUALITY CHARACTERISTICS OF SELECTED LAKES AND RESERVOIRS IN COLORADO By Linda J. Britton and Dennis A. Wentz U.S. GEOLOGICAL SURVEY Water-Resources Investigations Open-File Report 80-^36 Prepared in cooperation with the Colorado Department of Natural Resources, Colorado Water Conservation Board Lakewood, Colorado 1980 UNITED STATES DEPARTMENT OF THE INTERIOR CECIL D. ANDRUS, Secretary Geological Survey H. William Menard, Director For additional information For sale by: write to: Open-File Services Section Colorado District Chief Branch of Distribution U.S. Geological Survey, MS U.S. Geological Survey, MS 306 Box 250^6, Denver Federal Center Box 25^25, Denver Federal Center Lakewood, CO 80225 Denver, CO 80225 (303) 23^-5888 CONTENTS Page Metric conversions- — — —— — - — — —— — —— — — — — — — —— — ———— — — V Abstract-- ————————————————— ———————— ———————————— ———————— 1 Introduction— — — —————— ———— — — —— — — —— ——— —————— — — — 3 Purpose and Scope— — - —— - —— — —— — ———— — - — — — — — - —— —— 3 Acknowledgements-- — — — —— — — ———————— —— — — —— - ——— — — A Methods and significance of measured variables —— — ———— — — — — ———— A Temperature and thermal stratification—- —— ———— —— —— — — — ———— A Light transparency- ——— — —— — — ———— — — ——— ———— — — — — — 7 Di ssol ved oxygen— —— -
COLORADO MAGAZINE Published Bi-Monthly by the State H Lstorlcal Society of Colorado
THE COLORADO MAGAZINE Published bi-monthly by The State H lstorlcal Society of Colorado V OL. IX Denver, Colorado, September, 1932 No. 6 The Mission of Colorado Toll Roads ARTHUR RIDGWAY* Just as the occurrence of any physical event, however minute or insignificant, affects everything else in the material world, so each historical episode influences for good or ill the progress of civilization and culture. There is no impenetrable wall between past and present. The effects of erstwhile activities filter down through the intervening years to other generations whose contem poraneous philosophy and aspects of life are subtly tinted or even colored thereby. .A closed incident of the past often leaves for the future a continuing influence, the obscurity of which only adds to the charm of its determination. The toll roads of ColoradOI have come and gone-an affair that stripped of all the sentimental glamour with which moderns are prone to clothe vague incidents still remains strange enough to lure the most prosaic. It all started late in 1858 with the reported dis coveries of gold in the Pike's Peak Region. The throng of gold seekers with their dependent women and children surged slowly westward across the great plains and finally came to rest in the shadows of the mountains that for days previously had stretched along the entire western horizon of the immigrants, a low, blue, somber bank of mystery. Here they were, confronted by an appar ently impassable barrier and separated from civilized habitation by seven hundred miles of prairie the expanse of which was like the wideness of the sea, with the proverbial pot of gold at the end of the rainbow as illusive as the traditional will-o'-the-wisp. -
Aquatic Invasive Species Waterway Buffer Is One Half Mile Upstream
G r o s W Y O M I N G - R a w l i n s D i s p a t c h W e s t s V n e i n t r a e t n u o M Torrey r Peak e Klondike Osborn A v i a t i o n H a z a 1218r1' d s - 2 0 1 4 g Hill Mountain *# d Cream 9250 ' 11810 ' i *# *# Lookout r Puff Peak *# *# 12687 '*# *#12234 ' R B 9665' a Eagle Peak Crowheart Butte Indian n Little Sheep g 10979' 13246 '*# Butte 5990 ' Peak e Mountain *# 13349 ' # 6764 ' * 9683 ' *# 10223 ' *# *# *# *# Wolf Beaver *# *# Battle Game Hill Dinwoody Mountain Summit Mountain Mountain Flat Top Sand Mesa Mountain 7940 ' Tosi Peak 11618 ' Peak 9483 ' 9755 ' *# 11515 ' Mountain *# 4960 ' 111°0'0"W Deadhorse 110°50'0"W 110°40'0"W *# 7210' 110°30'0"W 110°20'0"W 11380 ' 110°10'0"W 110°0'0"W *# 109°50'0"W 109°40'0"W 109°30'0"W11610 ' 109°20'0"W 109°10'0"W 109°0'0S"Wteamboat 108°50'0"W 108°40'0"W 108°30'0"W 108°20'0"W 108°10'0"W 108°0'0"W Peak Red Hill *# 11823 ' Red *# Butte 9767 ' *# Peak 8923 ' 12825' *# *# 12294' *# *# 11607 ' 11838 ' *# 5884 ' 9771 ' Ramshorn *# S a n d H i l l s Rock Creek Peak *# Gypsum q® 10368' *# Buttes Hill *# 9582 ' *# 11045 ' Pass Peak 8447' *# Pavillion Shoshoni Municipal Airport Airport 13114' *# Pilot 9921 ' Dodge Squaretop Butte q® *# Butte Mountain *# Butte Alpine Airport *# 12670' 5881 ' 9165 ' 11695' 13340' *# *# 5857 ' *# *# Sand Butte q® Bradley 13450' *# Fourts Horn *# 13494' *# 5668 ' Mountain Fortress Kendall 12590'*# *# *# Water *# *# Bold *# 43°10'0"N 9292' *# Hill Mountain 13155' 13435' Winchester Tank Hill E Clause *# # Mountain E *# 7494' 11091 ' 13265' * Butte Argo Butte 5082 ' Peak -
Colorado Oil & Gas Conservation Commission Rules of Practice
Colorado Oil & Gas Conservation Commission Rules of Practice & Procedure Proposed Amended Appendix VI (February 2, 2009) Appendix VI: List of Public Water Systems Subject to Protections of Rule 317B PWSID SYS_NAME 1/1/2009 101115 Northglenn, City of 101150 Thornton, City of 101170 Westminster, City of 103005 Aurora, City of 103045 Englewood, City of 104300 Pagosa Area W&SD/Hatc/Stv 104500 Pagosa Area W&SD/Snowball 107115 Allenspark WC 107152 Boulder, City of 107155 Broomfield, City of 107401 Jamestown, Town of 107471 Lefthand WD/Niwot 107473 Lafayette, City of 107485 Longmont, City of 107487 Louisville, City of 107496 Lyons, Town of 107538 Nederland, Town of 107610 Pine Brook Hills WD 107701 San Lazaro MHP 107725 Superior Metro Dist #1 108300 Buena Vista, Town of 108700 Salida, City of 110010 Empire, Town of 110015 Georgetown, Town of 110020 Idaho Springs, City of 110026 Lookout Mountain WD 110035 Silver Plume, Town of 115171 Cedaredge, Town of 115288 Fruitland Domestic WC 115352 Hotchkiss, Town of 116001 Denver Water Board 117300 Dove Creek, Town of 117700 Rico, Town of 118015 Centennial W&SD/Highlands 119233 Eagle, Town of 119329 Gypsum, Town of 119467 Lake Creek Meadows MD 119510 Minturn, Town of 119671 Red Cliff, Town of 119786 Upper Eagle Regional WA 119802 Eagle River W&SD 121150 Colorado Springs, City of 121250 Forest View Acres WD 121300 Fountain Valley Authority 121450 Manitou Springs, City of 121575 Palmer Lake, Town of 2/2/2009 1 Appendix VI: List of Public Water Systems Subject to Protections of Rule 317B 121700 Red Rock Valley -
Highways to the Sky: a Context and History of Colorado’S Highway System
FINAL HIGHWAYS TO THE SKY: A CONTEXT AND HISTORY OF COLORADO’S HIGHWAY SYSTEM Submitted to: COLORADO DEPARTMENT OF TRANSPORTATION 4201 E. Arkansas Avenue Denver, Colorado 80222 Contract Routing No. 01HAA00247 Submitted by: ASSOCIATED CULTURAL RESOURCE EXPERTS 8341 Sangre de Cristo Road, Suite 202 Littleton, Colorado 80127 April 24, 2002 (Funded In Part By A State Historical Project Fund Grant from the Colorado Historical Society. Grant #2001-01-043) HIGHWAYS TO THE SKY: A CONTEXT AND HISTORY OF COLORADO'S HIGHWAY SYSTEM TABLE OF CONTENTS Chapter 1 IntroductionandProjectDescription...... ......... ...... 1-1 1.1 Historical Context.................................................................. 1-1 1.2 Purpose and Sponsorship......................................................... 1-2 1.3 Methods andProcedures.......................................................... 1-3 1.4 Further Areas of Research 1-5 Chapter 2 Setting...... ... ......... ..... 2-1 2.1 Locations and Topographical Description Pertinent to Colorado's Highways........................................................................... 2-1 2.2 General History and Mining, Settlement and Political Organization....... 2-1 2.3 The Colorado Highway Commission and Succeeding Agencies............ 2-3 Chapter 3 The Road Ahead: Early Trails in Colorado.................................. 3-1 3.1 Native Trails: Pre-History to 1850s............................................. 3-1 3.2 Emigrant and Trade Routes ........... 3-3 3.2.1 Santa Fe Trai1....................................................................... 3-3 3.2.2 Cherokee Trail .., ...,... 3-4 3.2.3 Smoky Hill Trail ,............. 3-5 3.2.4 Overland Trail ,...... 3-5 3.2.5 Trapper's Trai1..................................................................... 3-6 3.3 Military Roads and Federal Involvement. ,... 3-6 3.4 Mining-Related Roads. ,.. ,.. 3-8 3.5 Railroads and the End of the Wagon Trail.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 3-11 Chapter 4 Territorial and Pre-Automobile State Roads............................. -
Description of Water-Systems Operations in the Arkansas River Basin, Colorado
DESCRIPTION OF WATER-SYSTEMS OPERATIONS IN THE ARKANSAS RIVER BASIN, COLORADO By P.O. Abbott U.S. GEOLOGICAL SURVEY Water-Resources Investigations Report 85-4092 Prepared in cooperation with the SOUTHEASTERN COLORADO WATER CONSERVANCY DISTRICT and the U.S. BUREAU OF LAND MANAGEMENT Lakewood, Colorado 1985 UNITED STATES DEPARTMENT OF THE INTERIOR DONALD PAUL HODEL, Secretary GEOLOGICAL SURVEY Dallas L. Peck, Director For additional information Copies of this report can write to: be purchased from: Colorado District Chief Open-File Services Section U.S. Geological Survey, MS 415 Western Distribution Branch Box 25046, Denver Federal Center U.S. Geological Survey, MS 306 Lakewood, CO 80225 Box 25425, Denver Federal Center or Denver, CO 80225 Pueblo Subdistrict Chief Telephone (303) 236-7476 U.S. Geological Survey P.O. Box 1524 Pueblo, CO 81002 CONTENTS Page Glossary----------------- ---------------------------------------------- v Abstract---------------------------------------------- ----------------- i Introduction---- ------------------------------------ _________________ i Location of study area-------- ___-_________--------------_-_------ i Purpose and scope------------------------ ------ _________________ 3 Acknowledgments---------------------------------- _________________ 4 Geographic setting------- --------- ________________ _________________ 4 Population---------------------------------------------- -_-__----_ 4 Physiography and climate------------------------ ------------- --- 4 Drainage---------------------- ------------------------------------ -
Colorado Field Ornithologists the Colorado Field Ornithologists' Quarterly
Journal of the Colorado Field Ornithologists The Colorado Field Ornithologists' Quarterly VOL. 35, NO. 1 Journal of the Colorado Field Ornithologists January 2001 Vol. 35, No. 1 Journal of the Colorado Field Ornithologists January 2001 TABLE OF C ONTENTS UPCOMING CFO FIELD T RIPS.............................................................................................2 A NEW N AME AND O FFICE FOR THE C OLORADO B IRD O BSERVATORY...............................2 Michael F. Carter and Scott W. Gillihan THE EFFECTS OF ELK ON NEST-SITE SELECTION IN CAVITY-NESTING BIRDS IN ROCKY MOUNTAIN N ATIONAL P ARK.............................................................................4 Jennifer N. Duberstein COLORADO B REEDING B IRD A TLAS: USE AND U SES OF THE A TLAS D ATABASE..........13 Hugh E. Kingery FOUND: THE W EST S LOPE’S F IRST G REAT M IGRANT T RAP!...........................................17 Rich Levad and Tony Leukering BOBOLINK (DOLICHONYX ORYZIVORUS) SURVEYS IN THE YAMPA VALLEY: MOFFATT AND R OUTT C OUNTIES.....................................................................................20 Kim M. Potter REPORT OF THE C OLORADO B IRD R ECORDS COMMITTEE: 1999 RECORDS........................23 Bill Lisowski IT’S AN O WL-EAT-OWL W ORLD.......................................................................................40 Glenn Giroir OVENBIRD (SEIURUS AUROCAPILLUS) AT THE Y AMPA R IVER P RESERVE, ROUTT C OUNTY, COLORADO.......................................................................................................41 Kim