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, Florence Lake Dam - Location of 4" core holes in extrados of Arch 7
photCL SCE 02 - 22736

Visual Materials
Big Creek, Florence Lake Dam - Record photo of core samples taken from extrados of Arch #9 during October 1943. Reading from left to right 9-5, 9-4, 9-3, 9-2, and 9-1.
photCL SCE 02 - 24888

Visual Materials
Big Creek, Florence Lake Dam - Drilling 6" core from staging extrados Arch #16.
photCL SCE 02 - 22863

Visual Materials
Big Creek, Florence Lake Dam - Drilling core U-7-5 on extrados of Arch #7
photCL SCE 02 - 22746

Visual Materials
Big Creek, Florence Lake Dam - Extrados of Arch No. 9.
photCL SCE 02 - 24146

Visual Materials
Big Creek, Florence Lake Dam - Drilling core from extrados Arch #15, 13 ft. from right haunch at elevation 7262.
photCL SCE 02 - 24893