Rick Beaubien
G3700 svar .U6 CA San Francisco
Quad15
San Francisco 15-minute Quadrangle
San Quentin 7.5-minute Quadrangle
Richmond 7.5-minute Quadrangle
San Francisco North 7.5 minute quadrangle
Oakland West 7.5-minute Quadrangle
map
1895
U.S.Geological Survey
1:62,500
Contour interval 25 feet
Surveyed in 1892, 93, 94
map
1899
U.S.Geological Survey
1:62,500
Contour interval 25 feet
Surveyed in 1892, 93, 94
map
1915
U.S.Geological Survey
1:62,500
Contour interval 25 feet
Surveyed in 1892, 93, 94; Culture revised 1914
map
1942
U.S. Corp of Engineers
1:62,500
Contour interval 25 feet
Projection: Polyconic, NAD 1927
Tactical Map
map
1946
U.S. Army Map Service
1:50,000
Contour interval 50 feet
Projection: Polyconic, NAD 1927
AMS 2, 1946
map
1948
U.S. Army Map Service
1:50,000
Contour interval 50 feet
Transverse Mercator Projection, NAD 1927
AMS 3, 1948
none
RBG
800
Internal
UNKNOWN
UNKNOWN
0
UNKNOWN
UNKNOWN
UNKNOWN
0
JPG
RGB
0
UNKNOWN
UNKNOWN
300
U.C.Berkeley
UNKNOWN
UNKNOWN
UNKNOWN
Quad15
UNKNOWN
map
UNKNOWN
map
UNKNOWN
map
UNKNOWN
map
UNKNOWN
map
UNKNOWN
map
UNKNOWN