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
Highgrove Powerhouse - The Highgrove Hydro Plant, built by Charles R. Lloyd of the Riverside Water Company, showing water flowing into (sic) the plant and residences surrounding it. The plant burned down in 1915, but its foundation can still be seen today. The plant is believed to have been the first commercial hydroelectric plant built in California. .
photCL SCE 02 - 24443

Visual Materials
Highgrove-Chino Transmission Line - Santa Ana River - First transmission line to carry electricity from Mill Creek Canyon & Santa Ana Canyon to Los Angeles.
photCL SCE 02 - 30353

Visual Materials
Highgrove Powerhouse - Operator's cottage [the powerhouse was destroyed by fire in March of 1915]
photCL SCE 02 - 04343

Visual Materials
Highgrove Powerhouse and cottage
photCL SCE 03 - 00015

Visual Materials
Santa Ana River #2 Powerhouse - Interior of SAR 2 Hydro Plant [showing generators and Doble water wheels.]
photCL SCE 02 - 01043

Visual Materials
Santa Ana River #1 Powerhouse - The destroyed forebay at Santa Ana River #1 Hydro Plant.
photCL SCE 02 - 00153