GIS Data
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Preliminary geologic map of the Calamity Ridge Quadrangle, Rio Blanco County, Colorado
No abstract available.
Preliminary geologic map of the Mesa Quadrangle, Mesa County, Colorado
No abstract available.
Preliminary map showing limonitic areas in the Silver City 1 degree by 2 degrees Quadrangle, Arizona and New Mexico
This map is a part of a folio of maps of the Silver City 1o x 2o quadrangle, Arizona and New Mexico, prepared under the Conterminous United States Mineral Assessment Program. As a part of this study Landstat images were used to map the anomalous areas of limonitic materials as a guide to hydrothermal alteration which, in turn, acts as a guide to mineralized systems. The term limonite, defined by B
Preliminary mineral resource assessment map of California
No abstract available.
Quaternary geologic map of the Lake Superior 4 degrees x 6 degrees quadrangle, United States and Canada
The Quaternary Geologic Map of the Lake Superior 4? x 6? Quadrangle was mapped as part of the Quaternary Geologic Atlas of the United States. The atlas was begun as an effort to depict the areal distribution of surficial geologic deposits and other materials that accumulated or formed during the past 2+ million years, the period that includes all activities of the human species. These materials ar
Reconnaissance geochemical map of the Mount Henry Roadless Area, Lincoln County, Montana
A geochemical survey was conducted in the Mount Henry Roadless Area, Kootenai National Forest, Lincoln County, Mont. by the U.S. Geological Survey during the summer of 1981.
The sampling and analytical programs were designed to locate mineralized zones in outcrops or in rocks buried at shallow depth. The geochemical results should be evaluated in context with geological and geophysical results. Po
Reconnaissance geochemical maps of mineralized rocks in the Dragoon Mountains Roadless Area, Cochise County, Arizona
The Dragoon Mountains of central Cochise County are one of a group of northwest-trending ranges in southeastern Arizona. The Dragoon Mountains have a broad, low southeastern part; a narrow, moderately high central part; and a broad, high, northwestern part. The Dragoon Mountains Roadless Area, about 55 mi2 (104 km2) in size, covers most of this northwestern part. The roadless area thus extends fro
Reconnaissance geologic map of south-central Misheguk Mountain Quadrangle, Alaska
No abstract available.
Reconnaissance geologic map of southeastern Misheguk Mountain Quadrangle, Alaska
No abstract available.
Reconnaissance geologic map of southwestern Misheguk Mountain Quadrangle, Alaska
No abstract available.