Department of the Interior. Franklin K. Lane, Secretary. U.S. Geological Survey. George Otis Smith, Director. State of California. Hiram W. Johnson, Governor. Nathaniel Ellery, State Engineer University of Southern California. Libraries
R.B. Marshall, Chief Geographer. T.G. Gerdine, Geographer in charge. Topography by Duncan Hannegan and J.L. Lewis. Control by C.F. Urquhart, B.A. Jenkins, L.F. Biggs, and J.A. Vogelson. Surveyed in 1911. Surveyed in cooperation with the State of California. [Vertical] datum is mean sea level.
Type
image
Format
Scale: 1:62,500. Map type: TF. Unknown projection Horizontal datum: unknown Grid note: none Vertical datum: unknown Contour interval on land and off shore image/tiff topographic maps maps contour maps relief maps quadrangle maps
Byron California Western United States United States Geological Survey U.S. Geological Survey USGS 15 minute 1:62,500 scale Topographic Contra Costa County Alameda County San Joaquin County
Time Period
1911
Place
37.75000,-121.50000 38.00000,-121.50000 38.00000,-121.75000 37.75000,-121.75000 Byron California USA
Source
USC-2003-000086-1 [USCID]; 15CA-byron-e1916s1911 [Identifying number] University of Southern California [Contributing entity]
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