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 - Mammoth Pool - K-Frame support at diversion tunnel portal.
photCL SCE 06 - 45247

Visual Materials
Big Creek - Mammoth Pool - Diversion tunnel inlet from inside.
photCL SCE 06 - 45248

Visual Materials
Big Creek - Mammoth Pool - Diversion tunnel inlet from inside.
photCL SCE 06 - 45249

Visual Materials
Big Creek - Mammoth Pool - Outlet portal of diversion tunnel.
photCL SCE 06 - 45253

Visual Materials
Big Creek - Mammoth Pool - Grouting diversion tunnel portal.
photCL SCE 06 - 45246

Visual Materials
Big Creek - Mammoth Pool - Tunnel inlet portal with concrete forms partially removed.
photCL SCE 06 - 45256