GIS Data
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Geologic map of the Bonners Ferry 30' x 60' quadrangle, Idaho and Montana Geologic map of the Bonners Ferry 30' x 60' quadrangle, Idaho and Montana
This data set maps and describes the geology of the Bonners Ferry 30' x 60' quadrangle, Idaho and Montana. The bedrock geology of the Bonners Ferry quadrangle consists of sedimentary, metamorphic, and granitic rocks ranging in age from Middle Proterozoic to Eocene. Bedrock units include rocks of (1) the Middle Proterozoic Belt Supergroup (2) the Middle Proterozoic Deer Trail Group, (3)...
Geologic map of the Fremont quadrangle, Shannon, Carter, and Oregon Counties, Missouri Geologic map of the Fremont quadrangle, Shannon, Carter, and Oregon Counties, Missouri
The bedrock exposed in the Fremont Quadrangle, Missouri, comprises Early Ordovician aged dolomite, sandstone, and chert. The sedimentary rocks are nearly flat-lying except where they are adjacent to faults. The carbonate rocks are karstified and the area contains numerous sinkholes, springs, caves, and losing-streams. This map is one of several being produced under the U.S. Geological...
Geologic map of the Horse Mountain Quadrangle, Garfield County, Colorado Geologic map of the Horse Mountain Quadrangle, Garfield County, Colorado
New 1:24,000-scale geologic map of the Horse Mountain 7.5' quadrangle, in support of the USGS Western Colorado I-70 Corridor Cooperative Geologic Mapping Project, summarizes available geologic information for the quadrangle. It provides new interpretations of the stratigraphy, structure, and geologic hazards in the area of the southwest flank of the White River uplift. Bedrock strata...
Geologic map of the Lower Hurricane Wash and vicinity, Mohave County, Northwestern Arizona Geologic map of the Lower Hurricane Wash and vicinity, Mohave County, Northwestern Arizona
This digital map database is compiled from published open file reports, and new mapping by the author, and represents the general distribution of surficial and bedrock geology in the mapped area. The map area lies within the Shivwits and Uinkaret Plateaus, subplateaus of the southwestern part of the Colorado Plateau hypsographic province. Together with the accompanying pamphlet, it...