GIS Data
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Geologic map and map database of the Spreckels 7.5-minute Quadrangle, Monterey County, California Geologic map and map database of the Spreckels 7.5-minute Quadrangle, Monterey County, California
Introduction The Spreckels quadrangle lies at the north end of the Sierra de Salinas and extends from the Salinas Valley on the northeast across Los Laurelles Ridge south to Carmel Valley, an intermontane valley that separates the Santa Lucia Range from the Sierra de Salinas (fig. 1). The Toro Regional Park occupies the east-central part of the quadrangle, whereas the former Fort Ord...
Geologic map of the Chewelah 30' x 60' Quadrangle, Washington and Idaho Geologic map of the Chewelah 30' x 60' Quadrangle, Washington and Idaho
This data set maps and describes the geology of the Chewelah 30' X 60' quadrangle, Washington and Idaho. Created using Environmental Systems Research Institute's ARC/INFO software, the data base consists of the following items: (1) a map coverage containing geologic contacts and units, (2) a point coverage containing site-specific geologic structural data, (3) two coverages derived from...
Geologic map of the Clifton Quadrangle, Mesa County, Colorado Geologic map of the Clifton Quadrangle, Mesa County, Colorado
1:24,000-scale geologic mapping in the Clifton 7.5' quadrangle, in support of the USGS Colorado River/I-70 Corridor Cooperative Geologic Mapping Project, provides interpretations of the Quaternary stratigraphy and geologic hazards in this area of the Grand Valley. The Clifton 1:24,000 quadrangle is in Mesa County in western Colorado. Because the map area is dominated by various surficial...
Geologic Map of the Lavinia Planitia Quadrangle (V-55), Venus Geologic Map of the Lavinia Planitia Quadrangle (V-55), Venus
Introduction The Lavinia Planitia quadrangle (V-55) is in the southern hemisphere of Venus and extends from 25 to 50 south latitude and from 330 to 360 longitude. It covers the central and northern part of Lavinia Planitia and parts of its margins. Lavinia Planitia consists of a centralized, deformed lowland flooded by volcanic deposits and surrounded by Dione Regio to the west (Keddie...
Geologic Map of the MTM-85000 Quadrangle, Planum Australe Region of Mars Geologic Map of the MTM-85000 Quadrangle, Planum Australe Region of Mars
Introduction The polar deposits on Mars probably record martian climate history over the last 107 to 109 years (for example, Thomas and others, 1992). The area shown on this map includes layered polar deposits and residual polar ice, as well as some exposures of older terrain. Howard and others (1982) noted that an area (at lat 84.8 S., long 356 W.) near a 23-km diameter impact crater...