Astronomical Observatory

Historical marker location:

Volcano, California

( Marker is on Shake Ridge Road, 1 mile west of Rams Horn Grade, on the left when traveling west.)

Marker installed: 1968

The first drive-in movie theater in the world was opened in California in 1933. The theater, called the Drive-In Theatre, was located in Camden, New Jersey. However, the drive-in movie theater became more popular in California and eventually spread across the country.