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Filters: partyWithName: Allen H. Christensen (X) > partyWithName: Steven K. Predmore (X)

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These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This Digital Raster Graphic (DRG) was created using scanned U.S. Geological Survey 7.5-minute 1 to 24,000 scale maps georeferenced in Universal Transverse Mercator (UTM) grid. DRGs can be acquired with or without collar information for use in Geographic Information System (GIS) environment. Collarless DRGs can be edge matched creating a continuous collection of topographic maps.
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These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. Digital Elevation Models (DEMs) are digital records of terrain elevations at regularly spaced intervals. The interval between elevations of 7.5 minute DEMs is 30-meters. Each DEM file covers the area of one U.S. Geological Survey 1 to 24,000 scale 7.5 minute topographic quadrangle.
    map background search result map search result map Topographic Map image of the San Gorgonio Pass area, Riverside County, California. A 30 meter Digital Elevation Model (DEM) of the San Gorgonio Pass area, Riverside County, California. Topographic Map image of the San Gorgonio Pass area, Riverside County, California. A 30 meter Digital Elevation Model (DEM) of the San Gorgonio Pass area, Riverside County, California.