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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. -
National Register of Historic Places Registration Form
NPS Form 10-900 OMB No. 10024-0018 United States Department of the Interior National Park Service National Register of Historic Places Registration Form This form is for use in nominating or requesting determination for individual properties and districts. See instruction in How to Complete the National Register of Historic Places Registration Form (National Register Bulletin 16A). Complete each item by marking ``x'' in the appropriate box or by entering the information requested. If an item does not apply to the property being documented, enter ``N/A'' for ``not applicable.'' For functions, architectural classification, materials and areas of significance, enter only categories and subcategories from the instructions. Place additional entries and narrative items on continuation sheets (NPS Form 10-900a). Use a typewriter, word processor, or computer, to complete all items. 1. Name of Property historic name East Longs Peak Trail; Longs Peak Trail; Keyhole Route; Shelf Trail other names/site number 5LR.11413; 5BL.10344 2. Location street & number West of State Highway 7 (ROMO) [N/A] not for publication city or town Allenspark [X] vicinity state Colorado code CO county Larimer; Boulder code 069; 013 zip code 3. State/Federal Agency Certification As the designated authority under the National Historic Preservation Act, as amended, I hereby certify that this [X] nomination [ ] request for determination of eligibility meets the documentation standards for registering properties in the National Register of Historic Places and meets the procedural and professional requirements set forth in 36 CFR Part 60. In my opinion, the property [ ] meets [ ] does not meet the National Register criteria. I recommend that this property be considered significant [ ] nationally [ ] statewide [X] locally. -
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NPS Form 10-900 —. OMB No. 10024-0018 United States Department of the Interior National Park Service National Register of Historic Places Registration Form This form is for use in nominating or requesting determination for individual properti.es aTfa^IslftcTST6ee<iie^truction in How to Complete the National Register of Historic Places Registration Form (National Register Bulletin 16A). Complete each item by marking "x" in the appropriate box or by entering the information requested. If an Item does not apply to the property being documented, enter' N/A for "not applicable." For functions, architectural classification, materials and areas of significance, enter only categories and subcategories from the instructions. Place additional entries and narrative items on continuation sheets (NPS Form 10-900a). Use a typewriter, word processor, or computer, to complete all items. 1. Name of Property__________________________________________ historic name East Longs Peak Trail: Longs Peak Trail: Keyhole Route: Shelf Trail________ other names/site number 5LR.11413: 5BL.10344___________________________ 2. Location_______________________________________________ street & number West of State Highway 7 (ROMO)______________ [N/A] not for publication city or town Allenspark_________________________________ [X] vicinity state Colorado___ code CO county Larimer; Boulder code 069: 013 zip code 3. State/Federal Agency Certification __ As the designated authority under the National Historic Preservation Act, as amended, I hereby certify that this [X] nomination [ ] request for determination of eligibility meets the documentation standards for registering properties in the National Register of Historic Places and meets the procedural and professional requirements set forth in 36 CFR Part 60. In my opinion, the property [ ] meets [ ] does not meet the National Register criteria. -
Rocky Mountain National Park Lawn Lake Flood Interpretive Area (Elevation 8,640 Ft)
1 NCSS Conference 2001 Field Tour -- Colorado Rocky Mountains Wednesday, June 27, 2001 7:00 AM Depart Ft. Collins Marriott 8:30 Arrive Rocky Mountain National Park Lawn Lake Flood Interpretive Area (elevation 8,640 ft) 8:45 "Soil Survey of Rocky Mountain National Park" - Lee Neve, Soil Survey Project Leader, Natural Resources Conservation Service 9:00 "Correlation and Classification of the Soils" - Thomas Hahn, Soil Data Quality Specialist, MLRA Office 6, Natural Resources Conservation Service 9:15-9:30 "Interpretive Story of the Lawn Lake Flood" - Rocky Mountain National Park Interpretive Staff, National Park Service 10:00 Depart 10:45 Arrive Alpine Visitors Center (elevation 11,796 ft) 11:00 "Research Needs in the National Parks" - Pete Biggam, Soil Scientist, National Park Service 11:05 "Pedology and Biogeochemistry Research in Rocky Mountain National Park" - Dr. Eugene Kelly, Colorado State University 11:25 - 11:40 "Soil Features and Geologic Processes in the Alpine Tundra"- Mike Petersen and Tim Wheeler, Soil Scientists, Natural Resources Conservation Service Box Lunch 12:30 PM Depart 1:00 Arrive Many Parks Curve Interpretive Area (elevation 9,620 ft.) View of Valleys and Glacial Moraines, Photo Opportunity 1:30 Depart 3:00 Arrive Bobcat Gulch Fire Area, Arapaho-Roosevelt National Forest 3:10 "Fire History and Burned Area Emergency Rehabilitation Efforts" - Carl Chambers, U. S. Forest Service 3:40 "Involvement and Interaction With the Private Sector"- Todd Boldt; District Conservationist, Natural Resources Conservation Service 4:10 "Current Research on the Fire" - Colorado State University 4:45 Depart 6:00 Arrive Ft. Collins Marriott 2 3 Navigator’s Narrative Tim Wheeler Between the Fall River Visitors Center and the Lawn Lake Alluvial Debris Fan: This Park, or open grassy area, is called Horseshoe Park and is the tail end of the Park’s largest valley glacier. -
Rocky Mountain National Park
A Resource Assessment ROCKY MOUNTAIN NATIONAL PARK NATIONAL PARKS CONSERVATION ASSOCIATION JULY 2002 State of the Parks Program More than a century ago, Congress established Yellowstone as C ONTENTS the world’s first national park. That single act was the begin- ning of a remarkable and ongoing effort to protect this nation’s natural, historical, and cultural heritage. Summary page 1 But over the years, Americans have learned that designat- I. ALPINE WONDER 4 ing national parks does not automatically ensure the well being of the resources parks are meant to protect and the his- II. ROCKY MOUNTAIN ASSESSMENT 6 tory those resources represent. Many parks are threatened by incompatible development of adjacent lands, air and water Natural Resources 7 pollution, skyrocketing visitation, and rapid increases in Native Biodiversity 7 motorized recreation. Historic structures suffer from deterio- Terrestrial Communities and Systems 9 ration. Most cultural landscapes have yet to be adequately Freshwater Communities and Systems 12 inventoried. Only a small part—usually less than 10 percent—of the Cultural Resources 14 National Park Service budget each year is earmarked for man- History and Historic Structures 14 agement of natural, historical, and cultural resources. And in Collections and Archives 16 most years, only about 7 percent of permanent park employ- Archaeological Sites 17 ees work in jobs directly related to preserving park resources. The National Parks Conservation Association initiated Ethnography 18 the State of the Parks program in 2000 to assess the condition Cultural Landscapes 19 of natural and cultural resources in the parks, forecast the like- Stewardship Capacity 20 ly future condition of those resources, and determine how well equipped the National Park Service is to protect the Funding and Staffing 20 park—its stewardship capacity. -
A Guide to the Geology of Rocky Mountain National Park, Colorado
A Guide to the Geology of ROCKY MOUNTAIN NATIONAL PARK COLORADO For sale by the Superintendent of Documents, Washington, D. C. Price 15 cents A Guide to the Geology of ROCKY MOUNTAIN NATIONAL PARK [ COLORADO ] By Carroll H. Wegemann Former Regional Geologist, National Park Service UNITED STATES DEPARTMENT OF THE INTERIOR HAROLD L. ICKES, Secretary NATIONAL PARK SERVICE . NEWTON B. DRURY, Director UNITED STATES GOVERNMENT PRINTING OFFICE WASHINGTON : 1944 Table of Contents PAGE INTRODUCTION in BASIC FACTS ON GEOLOGY 1 THE OLDEST ROCKS OF THE PARK 2 THE FIRST MOUNTAINS 3 The Destruction of the First Mountains 3 NATURE OF PALEOZOIC DEPOSITS INDICATES PRESENCE OF SECOND MOUNTAINS 4 THE ROCKY MOUNTAINS 4 Time and Form of the Mountain Folding 5 Erosion Followed by Regional Uplift 5 Evidences of Intermittent Uplift 8 THE GREAT ICE AGE 10 Continental Glaciers 11 Valley Glaciers 11 POINTS OF INTEREST ALONG PARK ROADS 15 ROAD LOGS 18 Thompson River Entrance to Deer Ridge Junction 18 Deer Ridge Junction to Fall River Pass via Fall River .... 20 Fall River Pass to Poudre Lakes 23 Trail Ridge Road between Fall River Pass and Deer Ridge Junction 24 Deer Ridge Junction to Fall River Entrance via Horseshoe Park 29 Bear Lake Road 29 ILLUSTRATIONS LONGS PEAK FROM BEAR LAKE Front and back covers CHASM FALLS Inside back cover FIGURE PAGE 1. GEOLOGIC TIME SCALE iv 2. LONGS PEAK FROM THE EAST 3 3. PROFILE SECTION ACROSS THE ROCKY MOUNTAINS 5 4. ANCIENT EROSIONAL PLAIN ON TRAIL RIDGE 6 5. ANCIENT EROSIONAL PLAIN FROM FLATTOP MOUNTAIN ... 7 6. VIEW NORTHWEST FROM LONGS PEAK 8 7. -
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. -
TRATL RIDGE ROAD Rocky' Mountain National Park Between
TRATL RIDGE ROAD HAER No. CO-31 Rocky' Mountain National Park Between Estes Park and Grand Lake Estes Park vicinity Larimer County COLO Colorado 7- y PHOTOGRAPHS WRITTEN HISTORICAL AND DESCRIPTIVE DATA HISTORIC AMERICAN ENGINEERING RECORD National Park Service U.S. Department of the Interior P.O. Box 37127 Washington, D.C. 20013-7127 HISTORIC AMERICAN ENGINEERING RECORD TRAIL RIDGE ROAD Rocky Mountain National Park 7- HAER NO. CO-31 Location: Traversing Rocky Mountain National Park from Estes Park to Grand Lake, Colorado. Quadrangle and UTM: East end: Fall River Entrance Estes Park quad 13/448191/4470700 West end: Grand Lake Entrance Grand Lake quad 13/428765/4456351 Construction Date 1926-1949 Present Owner: Rocky Mountain National Park, National Park Service Present Use: Park scenic highway Significance: Trail Ridge Road has national, state, and local significance as an engineering feat-- the highest continuous highway in the United States—and for its role in the development of the Rocky Mountain National Park road system. Project Information: Documentation of Trail Ridge Road is part of the National Park Service Roads and Bridges Recording Project, conducted during the summer of 1993 under the co-sponsorship of HABS/HAER and Rocky Mountain National Park. Richard Quin, HAER Historian, August 1993 TRAIL RIDGE ROAD HAER NO. CO-31 (page 2) II. HISTORY The highest road in the national park system, and the highest continuous paved highway in the United States, the Trail Ridge Road is the principal highway crossing Rocky Mountain National Park between the park border communities of Estes Park and Grand Lake. The road was constructed largely between 1929 and 1932 to replace the Fall River Road; after its completion, the western portion of the old road was abandoned, and the eastern segment became a one-way uphill road. -
Rocky Mountain National Park Backcountry/Wilderness Plan
Backcountry/Wilderness Management Plan and Environmental Assessment FONSI FINDING OF NO SIGNIFICANT IMPACT BACKCOUNTRY/WILDERNESS MANAGEMENT PLAN AND ENVIRONMENTAL ASSESSMENT ROCKY MOUNTAIN NATIONAL PARK The Backcountry/Wilderness Management Plan for Rocky Mountain National Park (RMNP) was developed to address issues and provide guidelines for managing the non-developed areas of the park that are defined as backcountry or as designated, recommended, or potential wilderness. Park management proposed this new plan because the 1984 Backcountry Management Plan mainly addresses overnight use in the backcountry/wilderness and is inadequate for addressing management direction, consistency, and needs. The new plan details a wide array of issues and identifies specific standards for managing administrative actions and visitor use. The plan formalizes many current backcountry/wilderness management practices that have been in effect for the past twenty years. It does not affect developed areas, roads, or frontcountry park uses. The new plan supercedes any direction or guidance set forth in the 1984 Backcountry Management Plan. The adoption of this plan is not part of the recommendation before Congress to officially designate a large portion of the park as wilderness. An Environmental Assessment (EA) was conducted to examine plan alternatives. The EA involves detailed analysis of two alternatives and describes the potential impacts associated with implementing the proposed plan (Alternative A), or maintaining the current status of backcountry and wilderness management with no written standards (Alternative B). The EA was available for public review and comment beginning on January 19, 2001, and the review period was extended to April 6, 2001, which provided an opportunity for public input on the alternatives. -
Rocky Mountain National Park Geologic Resource Evaluation Report
National Park Service U.S. Department of the Interior Geologic Resources Division Denver, Colorado Rocky Mountain National Park Geologic Resource Evaluation Report Rocky Mountain National Park Geologic Resource Evaluation Geologic Resources Division Denver, Colorado U.S. Department of the Interior Washington, DC Table of Contents Executive Summary ...................................................................................................... 1 Dedication and Acknowledgements............................................................................ 2 Introduction ................................................................................................................... 3 Purpose of the Geologic Resource Evaluation Program ............................................................................................3 Geologic Setting .........................................................................................................................................................3 Geologic Issues............................................................................................................. 5 Alpine Environments...................................................................................................................................................5 Flooding......................................................................................................................................................................5 Hydrogeology .............................................................................................................................................................6 -
Never Summer Runners' Handbook
NEVER SUMMER 100K & 60K: JULY 30 – AUG 1 Start: Gould Community Center, Gould, Colorado Distance: 100km (64.0 miles & 14,450′) or 60km (37.6 & 8,850′) Min/Max Elevation: 8,450′ / 11,852′ Average Elevation: 10,220′ Terrain: Trail, dirt road, rough trail, high alpine, rocks Fauna: Moose, elk, deer, black bears, bighorn sheep UTMB Points: 100km – 4 points; 60km – 3 points Registration Caps: 500 total (100km – 350; 60km – 150) Time Allowance: 100km – 24hrs; 60km – 15hrs Date: 60km: Friday July 30, 2021, 5:30am 100km: Saturday July 31, 2021, 5:30am Following recommendations from the State of Colorado and Jackson County Public Health, at this point we do not anticipate any mandatory COVID protocols for runners or crews at our event. The race will continue increased sanitization and encourage those who are unvaccinated to wear masks. (6/18/21) In light of the recent tragedy of 21 deaths at a mountain 100k in China, we will be more strongly enforcing our required gear list, including a gear check as part of packet pickup. This applies to both the 100k and 60k. Required Gear: Jacket (Wind/Waterproof Recommended) Warm Hat / Beanie / Buff Gloves Whistle Reusable Cup Water Capacity of 32oz/1L Recommended Gear: Cell Phone Light + Spare Light/Batteries Extra Top Layer Space Blanket The Never Summer 100km & 60km races will take place almost entirely within the boundaries of State Forest State Park and run between the Never Summer Mountains on the northern border of Rocky Mountain National Park and the Medicine Bow Mountains to the north of Cameron Pass. -
Rocky Mountain National Park Park
Inside this Issue Join the Celebration Find us on your favorite social media platform to join in on special events, • Important Info This year marks one hundred years since photos, videos, and more! • Staying Safe Rocky was established. See the special insert • Centennial Information to learn about 100 years of Wilderness, • Ranger-led Programs Wildlife, and Wonder, and the events @Rockynps #rmnp • Fun Things to Do: Hiking, planned to celebrate the centennial birthday. Camping & More! National Park Service Rocky U.S. Department of the Interior Mountain The official newspaper National of Rocky Mountain National Park Park Park News Spring 2015 March 22, 2015 - June 13, 2015 Enjoy Your Visit By Katy Sykes, Information Office Manager What pictures in your mind does the word "springtime" conjure up? Fields of flowers, baby animals, twittering birds? How about white mountains and snowfalls measured in feet? Springtime in Rocky Mountain National Park is all of these and more. Actually, springtime in Rocky can feel like any season of the year: sunny, snowy, rainy, windy, warm, and cold. Spring days can be gorgeous with crystal blue skies and bright sunshine that pours down over the mountains. But traditionally, some of the park’s biggest snowfalls occur in March and April. Snow into early June up on the mountaintops is not uncommon. Trail Ridge Road is scheduled to open for the season on May 22 this year, but its opening is always weather-dependent and it stays open as long as weather and road conditions permit. Spring snows are usually quite wet, which is great for forest fire prevention but not always great for activities like snowshoeing, Dream Lake in springtime NPS/John Marino backcountry skiing, and early season hiking.