Type:
Year Established:
1906
Existing:
No
Source:
LL-1907
Download:
065b_Mile_Rock_CA_CG1 copy.jpg (709.24 KB)
File Type:
jpg (image/jpeg)
Photo Date:
ca 1951
Photo Credit:
USCG
Photo Courtesy of:
USCG Historian's Office
Collection / Donor:
LOCATION
Location:
San Francisco Bay Approach
Latitude:
37° 47'28"
Longitude:
122° 30'38"
City / Town:
SAN FRANCISCO
U.S. State:
California
Country:
United States
OWNER & ACCESS
Open to Public:
No
STRUCTURE
Disposition:
Helo Platform Replaced Upper 3 Floor of Tower in 1966
Year Tower Established:
1906
Tower Construction Material:
Concrete base
Tower Foundation:
CONCRETE/STEEL CAISSON
Height of light above mean high water, in feet:
78.25
Tower Shape:
CYLINDRICAL
Fog Signal Building?:
No
Keeper's Quarters?:
No
Year Keeper's Quarters:
1906
Keeper's Quarters Construction:
CONCRETE
OPTICS
Original Optic Type:
THIRD ORDER
Year Original Lens Installed:
1906
Private Aid:
No
USCG Access to Optics:
No
Entered by:
Entered Date:
Jan 15, 2018
ORIGINAL LENS DISPLAYED AT MUSEUM ON TREASURE ISLAND, Tower - Concrete base, iron casing, superstructure steel