Wandering Lizard
The San Francisco Bay Area

Mount Diablo State Park covers more than 20,000 acres and Mount Diablo itself rises to more than 3,800 feet. Because of the unobstructed views from its summit, the mountain has long been an important reference point and in 1851 served as the basis for much of the survey work done in northern California and all of the state of Nevada. It became a State Park in 1921. Betweem 1933 and 1942 the Civilian Conservation Corps (CCC) constructed roads and facilities in the park. The tower on the peak housing the Visitor Center was built by the CCC.