Yosemite Ghost Mines

Historical marker location:

Yosemite National Park, California

( Marker is on Tioga Pass Road (Route 120), on the right when traveling east.)

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.