Visual Materials
Mine or tunnel portal
- Description
- Mine or tunnel portal
- Date
- undated
- Call number
- photCL SCE 07 - 02577
Visual Materials
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Looking toward tunnel portal from top of main dam.
photCL SCE 07 - 02578
Visual Materials
Company Officials at Tunnel portal, Camp 60. [with sign showing "Worlds Record Camp" (174' in one week, 692' in one month).]
photCL SCE 02 - 12455
Visual Materials
Big Creek - Mammoth Pool - Outlet portal of diversion tunnel from inside tunnel.
photCL SCE 06 - 45266
Visual Materials
Big Creek - Mammoth Pool - Outlet portal of power tunnel from inside the tunnel.
photCL SCE 06 - 45405
Visual Materials
The portal of Tunnel #1 at Santa Ana River #1.
photCL SCE 01 - 00533
Visual Materials
Big Creek - Mammoth Pool - Grouting diversion tunnel portal.
photCL SCE 06 - 45246