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Federal
Data release for the geologic map of the upper Arkansas River valley region, north-central Colorado
Department of the Interior —
This 1:50,000-scale geologic map represents a compilation of the most recent geologic studies of the upper Arkansas River valley, between Leadville and Salida,... -
Federal
White Mountains Airborne Magnetic and Radiometric Geophysical Survey
Department of the Interior —
The White Mountains airborne magnetic and radiometric geophysical survey covers parts of the Livengood, Circle, and Fairbanks quadrangles 25 kilometers north of... -
Federal
Data Release for Surficial Geology and Quaternary Tectonics of the Madison Valley and Fault Zone, Madison, Gallatin, and Beaverhead Counties, southwest Montana
Department of the Interior —
The NNW-striking Madison fault zone is approximately 95 km in length, lying at the confluence of the northeast Basin and Range province and the Yellowstone tectonic... -
Federal
Geologic map of the Strawberry Butte quadrangle,Meagher County, Montana
Department of the Interior —
The Strawberry Butte quadrangle, scale 1:24,000, is a legacy map of the U.S. Geological Survey, made as part of the Montana Investigations Project to provide...