Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Big Creek, Mammoth Pool - Looking down upper part of penstock line from a point above the tunnel portal.
photCL SCE 02 - 40689
Visual Materials
Big Creek - Mammoth Pool - Power tunnel intake portal
photCL SCE 06 - 45833
Visual Materials
Big Creek - Mammoth Pool - Power tunnel intake portal
photCL SCE 06 - 45834
Visual Materials
Big Creek - Mammoth Pool - Power tunnel outlet portal site.
photCL SCE 06 - 45330
Visual Materials
Big Creek - Mammoth Pool - Excavation at outlet portal of power tunnel.
photCL SCE 06 - 45331
Visual Materials
Big Creek - Mammoth Pool - Developing outlet portal area of power tunnel.
photCL SCE 06 - 45340
