20250507 07424900 1.0 TRUE RGM_005A_SanFrancisco_SJ_1991_Sheet1of5 Wagner, D.L., Bortugno, E.J., and McJunkin, R.D. : California Division of Mines and Geology Regional Geologic Map 5A, scale 1:250,000. http://ngmdb.usgs.gov/Prodesc/proddesc_519.htm