Oat Hill Mine Road

Historical marker location:

Calistoga, California

( Marker is at the intersection of County Highway 29 and Silverado Trail, on the left when traveling north on County Highway 29.)

Marker installed: 1998

California was the site of the nation's first successful oil well in 1892. The well was drilled in the city of Los Angeles and produced about 25 barrels of oil a day. Today, California remains a major oil-producing state.