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Geologic map of the Lazy Y Point Quadrangle, Moffat County Colorado Geologic map of the Lazy Y Point Quadrangle, Moffat County Colorado
The Lazy Y Point quadrangle is in northwestern Colorado a few miles north of Rangely. The prominent structural feature of the Lazy Y Point quadrangle is the Skull Creek monocline. Pennsylvanian rocks are exposed along the axis of the monocline while hogbacks along its southern flank expose rocks that are from Permian to Upper Cretaceous in age. The Wolf Creek monocline and the Wolf Creek...
Geologic map of the Mohave Mountains area, Mohave County, western Arizona Geologic map of the Mohave Mountains area, Mohave County, western Arizona
Introduction The Mohave Mountains area surrounds Lake Havasu City, Arizona, in the Basin and Range physiographic province. The Mohave Mountains and the Aubrey Hills form two northwest-trending ranges adjacent to Lake Havasu (elevation 132 m; 448 ft) on the Colorado River. The low Buck Mountains lie northeast of the Mohave Mountains in the alluviated valley of Dutch Flat. Lowlands at...
Geologic map of the Sedan quadangle, Gallatin and Park Counties, Montana Geologic map of the Sedan quadangle, Gallatin and Park Counties, Montana
This quadrangle lies 6.4 km (4 mi) northeast of Bozeman, Mont., in southwestern Montana. Metamorphic, sedimentary, and volcanic rocks of Precambrian to Tertiary age are exposed in the Bridger Range and southwestern margin of the Crazy Mountains Basin in a crustal cross section and a structural triangle zone. Surface geology records Precambrian extension, Late Paleocene east-vergent...
Geologic map of the Skull Creek quadrangle, Moffat County Colorado Geologic map of the Skull Creek quadrangle, Moffat County Colorado
The Skull Creek quadrangle is in northwestern Colorado a few miles north of Rangely. The prominent structural feature of the Skull Creek quadrangle is the Skull Creek monocline. Pennsylvanian rocks are exposed along the axis of the monocline while hogbacks along its southern flank expose rocks that are from Permian to Upper Cretaceous in age. The Wolf Creek monocline and the Wolf Creek...
Map and description of the active part of the Slumgullion Landslide, Hinsdale County, Colorado Map and description of the active part of the Slumgullion Landslide, Hinsdale County, Colorado
This text accompanies a map of many of the features on the active part of the Slumgullion landslide, Hinsdale County, Colo. Long-term movement creates and destroys a variety of structural features on the surface of the landslide including faults, fractures, and folds, as well as basins and ridges. The Slumgullion landslide consists of a large volume of inactive landslide deposits and a...