Opening Hours
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108

Visual Materials
Big Creek, Mono-Bear Diversion - Showing general arrangement at the outlet of the Mono and Bear Tunnels. The open concrete boxes are expansion joint houses, with the main wye being incased in the concrete anchor shown in the center. The small house between the yellow pine tree and the outlet of the Bear Tunnel is for the thermometer installation.
photCL SCE 02 - 14746

Visual Materials
Big Creek, Mono-Bear Diversion - Mono tunnel outlet at left, and Bear tunnel outlet at right, at the north end of the Mono-Bear Siphon. (Powder shown at point of truck delivery, for transfer by car to magazine.) - Camp 82 .
photCL SCE 02 - 14350

Visual Materials
Big Creek, Mono-Bear Diversion - Outlet portal of short tunnel on Mono Bear Siphon just below the outlets of the Mono and Bear Tunnels.
photCL SCE 02 - 14384

Visual Materials
Big Creek, Mono-Bear Diversion - Excavation of Mono-Bear Siphon in progress between top of hill north of San Joaquin river and outlet of Mono and Bear tunnels.
photCL SCE 02 - 14388

Visual Materials
Big Creek, Mono-Bear Diversion - Camp 82 at the outlet of the Mono and Bear Tunnels; showing topography and tent house cabins.
photCL SCE 02 - 14324a

Visual Materials
Big Creek, Mono-Bear Diversion - Looking across south fork of San Joaquin river over Camp 84 in center of picture, showing general topography and Mono-Bear siphon extending up almost to the outlet of the Mono and Bear tunnels.
photCL SCE 02 - 14387