CERES USGS 7.5 Minute Digital Raster Graphics By County

NOTICE: DRG files are now available via the California Spatial Information Library (CaSIL) An Interface for find and downloading Digital Raster Graphics (DRG) have been made available online by the California Spatial Information Library (CaSIL). These topographic maps were scanned by the Teale Data Center. Both clipped and unclipped versions of these images are available in a TIFF format. Low Resolution DRG Example Note: On average, these files are about 12 MBytes. Because of long download times and server load, you may experience difficulty logging on. Additional servers are being set up to alleviate this problem. Viewing Instructions These Tag Image File Format (TIFF) files can be read by any software application capable of reading TIFF data. The USGS provides a free viewer called dlgv32 available for download. More Information GIS Data Depot California Datasets USGS DRG Web California Spatial Information Library (CaSIL)

California Counties Alameda Alpine Amador Butte Calaveras Colusa Contra Costa Del Norte El Dorado Fresno Glenn Humboldt Imperial Inyo Kern Kings Lake Lassen Los Angeles Madera Marin Mariposa Mendocino Merced Modoc Mono Monterey Napa Nevada Orange Placer Plumas Riverside Sacramento San Benito San Bernardino San Diego San Francisco San Joaquin San Luis Obispo San Mateo Santa Barbara Santa Clara Santa Cruz Shasta Sierra Siskiyou Solano Sonoma Stanislaus Sutter Tehama Trinity Tulare Tuolumne Ventura Yolo Yuba