Fossils in the sandstone used to built the Summit Museum at Mount Diablo #summitmuseum #ccc #civilianconservationcorps #thenewdeal #eastbay #mountdiablo #mountdiablostatepark #castateparks #americasstateparks

The Summit Museum at Mount Diablo. The museum was completed in 1942 during the last operational period the Civilian Conservation Corps #summitmuseum #ccc #civilianconservationcorps #thenewdeal #eastbay #mountdiablo #mountdiablostatepark #castateparks #americasstateparks