California Department of Conservation Division of Mines and Geology Map

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ANGA California Department of Conservation Division of Mines and Geology RESOURCES Simplified Geologic Map of California OF CALIFORNIA EXPLANATION MINES AND GEOLOGY PARTMENT LONSERVATIO Oregon 100 MILES Sedimentary and Volcanic Rocks To KILOMETERS OF Volcanic rocks 120 42 Nonmarine Marine 121 sedimentary sedimentary rocks 124" 123 rocks Cr LakeRe MODOC AUTURA Franciscan Complex Great Valley Sequence, marine including coastal belt rocks sedimentary rocks ( early Tertiary in part) 41 PLATEAU Slasta Lab Meta-sedimentary and meta-volcanic rocks predating granitic intrusions Lake REDDING LASSEN PEAK SUSANVILLE ake Leke Meta-sedimentary and meta-volcanic rocks; includes some Triassic rocks in Klamath Mountains; some Precambrian rocks in Great Basin 40 NEADA UTTER UTTES UKIAH Rocks of all types 119 Nevada Metamorphic rocks of unknown age Mokelu Intrusive Igneous Rocks Point Reyes 118 Tealsene Granitic rocks RIVER 124 37 Monieey Boy FRESNOO Ultramafic rocks TNEY MONTEREYS Geological boundary 36" Fault 115 ERSPELD MOJAVE TRANSVERS Point Ceneest SANTA MRBARA BERN RDINO CHANNEL 123 San Miguel taland Santa Cra aland 34 sp00 Santa Rose istand SAN SeANDRAS SALTON PEDRO CHANNEL Sent Bete end Sama Calalina sland FAUCT ZONE TROUGH San Nicols siand PENI CENTRO Sen Clemente ed AR 33 o SAN DIEGO 116 Compiled by USGS and CDMG, 1965. CASCADE MOUNTAINS Cenozoic CALIFORNIA SACRAMES Late Mesozoic Paleozoic NT RA Pre- COAS ALLEY Pre- Cenozoic Cambrian Chiefly Mesozoic

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More detailed geologic maps of California at 1:250,000 and 1:750,000 scales may be ordered from: California Division of Mines and Geology Geologic Information and Publications 660 Bercut Drive Sacramento, CA 95814-0131 Williams & Heintz Map Corporation, Capitol Heights, Md. 20743