Site information:

Almaden Rd and Almaden Way, New Almaden

37.174015,-121.824781

Plaque information:

State plaque

Plaque text:

Site of First Mining in California

Here, along Arroyo de los Alamitos Creek in 1824, Luís Cabolla and Antonio Suñol first worked New Almaden ore in an arrastra. In constant production since 1845, more than a million flasks of quicksilver valued at over 50 million dollars have been produced.

Plaque placed by the State Department of Parks and Recreation in cooperation with the California Pioneers of Santa Clara County and Mountain Charlie Chapter No. 1850, E Clampus Vitus, October 13, 1979.