GIS Data
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Reconnaissance geologic map of part of McLendon Volcano, Yavapai County, Arizona
No abstract available.
Reconnaissance geologic map of part of the San Isidro Quadrangle, Baja California Sur, Mexico
The reconnaissance geology of part of the San Isidro 1:250,000-scale quadrangle of Baja California Sur, Mexico, was mapped in 1982, 1983, and 1984 to determine the age and stratigraphic relations of Tertiary sedimentary and volcanic rocks that comprise the bulk of the Sierra de la Giganta (southern Peninsular Ranges) and Pacific coastal plain. Focus was placed on determining the distribution and a
Reconnaissance geologic map of the Cooper Mountain Quadrangle, Fremont County, Colorado
No abstract available.
Reconnaissance geologic map of the Hyampom Quadrangle, Trinity County, California
No abstract available.
Reconnaissance geologic map of the Phantom Canyon Quadrangle, Fremont County, Colorado
No abstract available.
Reconnaissance geologic map of the Toltec Mesa Quadrangle, Rio Arriba County, New Mexico
No abstract available.
Reference section for the Minturn Formation (Middle Pennsylvanian), northern Sangre de Cristo Range, Custer County, Colorado
This reference section of the Middle Pennsylvanian Minturn Formation was measured in the northern Sangre de Cristo Range; the section provides a basis for comparison with the type Minturn and with possibly equivalent strata elsewhere in southern Colorado. The name "Minturn" was first applied to strata of Middle Pennsylvanian age near the town of Minturn in central Colorado (Tweto, 1949, p. 194-228
Seismicity map of the State of Montana
This map is one of a series of seismicity maps produced by the U. S. Geological Survey that show earthquake data of individual states or groups of states at the scale of 1:1,000,000. This map shows only those earthquakes with epicenters located within the boundaries of Montana, even though earthquakes in bordering states or countries may have been felt or may have caused damage in Montana.
The dat
Seismicity map of the State of Wyoming
The data shown on this map and listed in table 1 are for earthquakes that were originally included in a study of seismic risk in the United States (Algermissen, 1969). This data file has been recompiled and updated through 1981. Some revisions of epicenters and intensities in the original file have been made, and intensities have been assigned to earthquakes that previously had none assigned. Only
Seismotectonic map of the Puget Sound Region, Washington
No abstract available.