This release presents the GIS data (in GDB, shapefile, and e00 [coverage] formats) and metadata for a 1:24,000-scale geologic map of the Poncha Pass area in central Colorado. A cartographic version of the geologic map, including map unit descriptions, interpretative text, and accessory figures and t

This dataset accompanies publication: Minor, S.A., Caine, J.S., Ruleman, C.A., Fridrich, C.J., Chan, C.F., Brandt, T.R., Morgan,L.E., Cosca, M.A., and Grauch, V.J.S., in prep, Geologic map of the Poncha Pass area, Chaffee, Fremont, and Saguache Counties, Colorado: U.S. Geological Survey Scientific I

This dataset was collected by Leah E. Morgan and Michael A. Cosca in the Argon Geochronology Laboratory of the USGS in Denver, Colorado in 2015. The dataset contains full raw argon isotopic data for samples presented in: Geologic Map of the Poncha Map Area, Chaffee, Fremont, and Saguache Counties, C

This dataset accompanies publication: Minor, S.A., Caine, J.S., Ruleman, C.A., Fridrich, C.J., Chan, C.F., Brandt, T.R., Morgan,L.E., Cosca, M.A., and Grauch, V.J.S., in prep, Geologic map of the Poncha Pass area, Chaffee, Fremont, and Saguache Counties, Colorado: U.S. Geological Survey Scientific I

This dataset was collected by Leah E. Morgan and Michael A. Cosca in the Argon Geochronology Laboratory of the USGS in Denver, Colorado in 2015. The dataset contains full raw argon isotopic data for samples presented in: Geologic Map of the Poncha Map Area, Chaffee, Fremont, and Saguache Counties, C

In order to determine the degree of ecological damage inflicted as a result of mining operations around the Gothic area, three tailings piles were identified in Gothic and Crested Butte and an observational study of plant species on and around them carried out. It was found that both total numbers o

Aeromagnetic and aeroradiometric data were collected along flight lines by instruments in an aircraft that recorded magnetic-field and radiometric values and locations. The magnetic data set presents latitude, longitude, altitude, and magnetic-field values. Geologic symbols or codes are also include

Aeromagnetic and aeroradiometric data were collected along flight lines by instruments in an aircraft that recorded magnetic-field and radiometric values and locations. The magnetic data set presents latitude, longitude, altitude, and magnetic-field values. Geologic symbols or codes are also include

High Country Citizens Alliance. July 8, 2005.

Prehistoric Culture Change on the Colorado Plateau: Ten Thousand Years on Black Mesa. Shirley Powell and Francis E. Smiley, editors. 2002. University of Arizona Press, Tucson, xi + 221 pp. $50.00 (cloth), ISBN 0-8165-1439-9. - Volume 69 Issue 1

Natural Heritage Program Colorado. October 1997.

Guidelines for the Identification, Registry and Designation of Colorado Natural Areas July, 1993 The Colorado Natural Areas Program (CNAP) was created by an act of the Colorado Legislature in 1977 and reauthorized in 1988. The Colorado Natural Areas Act, as set forth under C.R.S. 33-33-101 et seq. (

Research Article| February 01, 1988 Petrology of flecked gneisses in the northern Wet Mountains, Fremont County, Colorado ROBERT B. TRUMBULL ROBERT B. TRUMBULL 1Department of Geology, University of New Mexico, Albuquerque, New Mexico 87131 Search for other works by this author on: GSW Google Scholar

Site 41CD56 is an aboriginal site located on Crier Creek in northwestern Colorado County, Texas. Testing in October, 1983, revealed that moderate amounts of thermally altered chert/quartzite and lithic debitage were contained in sandy deposits varying from 20 to 110 cm in depth. Two burned rock accu

Numerous mountain watersheds in the Colorado Mineral Belt (CMB) are impacted by acid rock drainage (ARD) and acid mine drainage (AMD), which mobilize metals and rare earth elements (REEs) into surface waters. In the upper Roaring Fork watershed near Independence Pass, natural ARD from a highly miner

Numerous mountain watersheds in the Colorado Mineral Belt (CMB) are impacted by acid rock drainage (ARD) and acid mine drainage (AMD), which mobilize metals and rare earth elements (REEs) into surface waters. In the upper Roaring Fork watershed near Independence Pass, natural ARD from a highly miner

The survey and research work conducted at Black Canyon of the Gunnison National Recreation Area and Curecanti Recreation Area are clear examples of how meagre beginnings can develop into a fruitful, long-range program designed on the one hand to meet National Park Service management needs, and on th

Mitigative archeological investigations were conducted in 1983 at the southern end of the important Elk Creek site, 5GN204/205, within Curecanti National Recreation Area prior to construction of a park apartment complex. That portion of the site extended onto a rocky promontory overlooking Blue Mesa