Site information:

At the end of the paved portion of Silverado Canyon Rd, at the Maple Springs Visitors Center, Silverado

Nothing remains of the site, as far as I know.

33.747524,-117.583323

Plaque information:

State plaque

Plaque text:

Silverado

Located in Cañada de la Madera (Timber Canyon) was a mining boomtown founded in 1878 when silver was discovered nearby. During the colorful life of its boom, 1878-1881, miners flocking to the area established a thriving community, served daily by stage from Los Angeles and Santa Ana.

California State Park Commission

Registered 6/20/1935