01970oem 2200517Ia 450 991069294010332120041004152617.0(CKB)5470000002358095(OCoLC)37641261ocm37641261(OCoLC)995470000002358095(EXLCZ)99547000000235809519970918d1997 da engb||||||||||||||aa|||||dcrdrdacontentcrdamediacrrdacarrierPreliminary geologic map of the Simi 7.5ʹ quadrangle, southern California[electronic resource] a digital database /compiled by R.F. Yerkes and R.H. CampbellMenlo Park, CA :The Survey ;[Denver, CO] :[USGS Information Services (Open-File Report Sales)],1997.Open-file report ;97-259Title from caption title screen.Relief shown by contour lines and spot heights.No paper maps make up these reports; rather they are issued as a digital database.Distributed to depository libraries in microfiche; shipping list no.: 99-0270-M.Includes explanatory text and bibliographical references.This database delineates map units that are identified by general age and stratigraphic position.Preliminary geologic map of the Simi 7.5ʹ quadrangle, southern California GeologyCaliforniaVentura CountyMapsMaps.lcgftGeologyYerkes R. F.1923-1382036Campbell Russell H.1928-1382037GISGISOCLGPOOCLOCLCQGPOBOOK9910692940103321Preliminary geologic map of the Simi 7.5ʹ quadrangle, southern California3430783UNINA