#ArchivesYouAreHere “Los Angeles topographic sheet” c. 1904, Well survey for Los Angeles
#ArchivesYouAreHere “Los Angeles topographic sheet” c. 1904, Well survey for Los Angeles by Water Department of the City of Los Angeles Superintendent William Mulholland File Unit: Los Angeles County. Series: Hydrographic Survey Sheets, ca. 1894 - ca. 1934. Record Group 57: Records of the U.S. Geological Survey, 1839-1008. (National Archives Identifier 24746939). -- source link
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