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Federal
Data release for the geologic map of the upper Arkansas River valley region, north-central Colorado recent views
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
Data release for geologic map of the Fort Collins 30' x 60' quadrangle, Larimer and Jackson Counties, Colorado and Albany and Laramie Counties, Wyoming recent views
Department of the Interior —
This geologic map provides new and compiled geologic mapping at 1:100,000-scale in the Fort Collins 30' x 60' quadrangle covering the northern Front Range and... -
Federal
Data release for the geologic map of the Fort Morgan 7.5' quadrangle, Morgan County, Colorado recent views
Department of the Interior —
The Fort Morgan 7.5' quadrangle is located on the semiarid plains of northeastern Colorado, along the South Platte River corridor where the river has incised into... -
Federal
Data release for the geologic map of the Weldona 7.5' quadrangle, Morgan County, Colorado recent views
Department of the Interior —
The Weldona 7.5' quadrangle is located on the semiarid plains of northeastern Colorado, along the South Platte River corridor where the river has incised into Upper... -
Federal
Data release for Geologic Map of the Leadville North 7.5' quadrangle, Eagle and Lake Counties, Colorado recent views
Department of the Interior —
The Leadville North 7.5' quadrangle lies at the northern end of the Upper Arkansas Valley, where the Continental Divide at Tennessee Pass creates a low drainage... -
Federal
Data release for Geologic Map of the Poncha Pass Area, Chaffee, Fremont, and Saguache Counties, Colorado recent views
Department of the Interior —
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... -
Federal
Digital database of the previously published geologic map of the Boulder-Fort Collins-Greeley area, Colorado recent views
Department of the Interior —
This digital map shows the geographic extent of rock stratigraphic units (formations) as compiled by Colton in 1976 under the Front Range Urban Corridor Geology... -
Federal
Data release for Surficial Geology of the Northern San Luis Valley, Saguache, Fremont, Custer, Alamosa, Rio Grande, Conejos, and Costilla Counties, Colorado recent views
Department of the Interior —
The San Luis Valley and associated underlying basin of south-central Colorado and north-central New Mexico is the largest structural and hydrologic basin of the Rio... -
Federal
Data release for Geologic Map of the Homestake Reservoir 7.5' quadrangle, Lake, Pitkin, and Eagle Counties, Colorado recent views
Department of the Interior —
The Homestake Reservoir 7.5' quadrangle lies at the northwestern end of the Upper Arkansas Valley, and headwaters of the Arkansas River, and the Roaring Fork,...