Emigrant Trail Terminus

Historical marker location:

Sonora, California

( Marker is at the intersection of Mono Way (Old State Highway 108) and Greenley Road, on the right when traveling east on Mono Way (Old State Highway 108).)

Marker installed: 1996

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.