Filters: Contacts: B.R. Johnson (X)20 results (421ms)
GSDRAW and GSMAP; prototype programs for the IBM PC or compatible microcomputers to assist compilation and publication of geologic maps and illustrations
Reconnaissance geologic map of parts of the Zapata Ranch and Mosca Pass quadrangles, Alamosa and Huerfano counties, Colorado
This report describes the contents of a digital dataset which consistsof four ARC/INFO Export format files. The dataset includes a digitalrepresentation of the Montana state geologic map.
Reconnaissance geologic map of parts of the Twin Peaks and Blanca Peak quadrangles, Alamosa, Costilla, and Huerfano counties, Colorado
Digital representation of the Idaho State geologic map; a contribution to the Interior Columbia River basin ecosystem management project
Reconnaissance geologic map of the Medano Pass Quadrangle and part of the Liberty Quadrangle, Alamosa, Huerfano, and Saguache counties, Colorado
Mineral resource potential map of the western Chichagof and Yakobi Islands Wilderness Study Area, southeastern Alaska
Digital representation of the Montana state geologic map; a contribution to the Interior Columbia River basin ecosystem management project
Map of major lithologic units in the Pacific Northwest; a contribution to the Interior Columbia Basin Ecosystem Management Project
Geologic map of the Beck Mountain, Crestone Peak, and Crestone quadrangles, Custer, Huerfano, and Saguache counties, Colorado
Digital maps of compositionally classed lithologies derived from 1:500,000 scale geologic maps for the Pacific Northwest; a contribution to the Interior Columbia River Basin Ecosystem Management Project
Future minerals related activity, Interior Columbia Basin Ecosystem Management Project area: an overview
Breeding densities and migration periods of Common Snipe in Colorado were investigated in 1974-75. Sites studied were near Fort Collins and in North Park, both in north central Colorado; in the Yampa Valley in northwestern Colorado; and in the San Luis Valley in south central Colorado....Estimated densities of breeding snipe based on censuses conducted during May 1974 and 1975 were, by region: 1.3-1.7 snipe/ha near Fort Collins; 0.6 snipe/ha in North Park; 0.5-0.7 snipe/ha in the Yampa Valley; and 0.5 snipe/ha in the San Luis Valley. Overall mean densities were 06 and 0.7 snipe/ha in 1974 and 1975 respectively. On individual study sites, densities of snipe ranged from 0.2 to 2.1 snipe/ha. Areas with shallow, stable,...
Reconnaissance geologic map of the Western Chichagof and Yakobi Islands wilderness study area, southeastern Alaska
Mineral resource potential map of the Sangre de Cristo Wilderness study area, south-central Colorado