INYO KERN SAN BERNARDINO FRESNO RIVERSIDE SISKIYOU TULARE LASSEN MODOC MONO SHASTA IMPERIAL TRINITY SAN DIEGO TEHAMA HUMBOLDT PLUMAS MONTEREY LOS ANGELES MENDOCINO LAKE BUTTE MADERA MERCED KINGS TUOLUMNE SAN LUIS OBISPO VENTURA GLENN PLACER YOLO SONOMA SANTA BARBARA EL DORADO NAPA COLUSA MARIPOSA SIERRA STANISLAUS NEVADA YUBA SAN BENITO SOLANO SAN JOAQUIN ALPINE SANTA CLARA ORANGE DEL NORTE CALAVERAS MARIN ALAMEDA SUTTER SACRAMENTO AMADOR CONTRA COSTA SANTA CRUZ SAN MATEO SAN FRANCISCO Napa Yreka Ukiah Sonora Quincy Merced Madera Fresno Eureka Colusa Auburn Willows Visalia Ventura Salinas Redding Oakland Modesto Jackson Hanford Alturas Woodland Stockton San Jose Oroville Martinez Mariposa Lakeport Yuba City Santa Ana San Diego Riverside Red Bluff Hollister Fairfield El Centro Susanville Santa Rosa Santa Cruz San Rafael Sacramento Bridgeport Weaverville San Andreas Placerville Nevada City Los Angeles Downieville Bakersfield Redwood City Markleeville Independence Santa Barbara San Francisco Crescent City San Bernardino San Luis Obispo U.S. DEPARTMENT OF AGRICULTURE NATURAL RESOURCES CONSERVATION SERVICE Ground-Penetrating Radar Soil Suitability Map of California 0 25 50 75 Miles Map prepared by USDA-NRCS Soil Survey Division-National Geospatial Development Center, 157 Clark Hall Annex, West Virginia University, Morgantown, WV 26506-6301 NGDC-6118-07192007-4 Albers Equal Area Map Projection North American Datum of 1983 Sources: Doolittle , J. A. F. E. Minzenmayer, S. W. Waltman, E. C. Benham, J. W. Tuttle, and S. Peaslee. 2006. State Ground-penetrating Radar Soil Suitability Maps. Paper HYD; 13_mdx. 1-8 pp. IN: Daniels, J. J., and C-C. Chen (Eds.) Proceedings of the 11th International Conference on Ground Penetrating Radar, Columbus, Ohio, June 19 - 22, 2006. CD. USDA-NRCS. 2007. County Boundaries derived from 1:100,000 (Bureau of Census - TIGER). National Cartography and Geospatial Center, Ft. Worth, Texas. National Soil Survey Center, Lincoln, Nebraska and National Geospatial Development Center, Morgantown, West Virginia. (http://soils.usda.gov). USDA-NRCS. 2007. Ground-Penetrating Radar Soil Suitability Maps. National Collection. (http://www.soils.usda.gov/survey/geography/maps/GPR/index.html). Fiscal Year 2007, second quarter edition. USDA-NRCS. 2007. Roads layer derived from 1:100,000 (Bureau of Census - TIGER). National Cartography and Geospatial Center, Ft. Worth, Texas. USDA-NRCS. 2007. Soil Survey Geographic Database (SSURGO) version 2.1. California Collection. Davis, CA. Soil Data Mart Source (http://soildatamart.nrcs.usda.gov). Fiscal Year 2007, second quarter edition. GPR Suitability Index and Application Potential High Potential 1 2 Moderate Potential 3 Low Potential 4 5 Unsuited 6 Water No Data Not Digitized