The tower was constructed during the late 1930's of fossiliferous sandstone blocks quarried in the park. The Visitor Center highlights the cultural and natural history of Mt. Diablo State Park. Visit the Mitchell Canyon Information Center on the north side of the mountain. Exhibits Impressive exhibits chronicle the history of the mountain and capture its majesty. A rock wall with instructional video examines the geological forces which created the mountain.
Panels describe the native American history of the region.
A diorama, complete with native sounds, offers an overview of the park's ecosystems. A model of the mountain acquaints visitors with important park locations. Splendid photographs enhance the visitor's experience. In addition to the exhibits, the summit museum features a gift shop and audio-visual room. Art Gallery Rotating displays of the fine interpretive art by local artists and photographers complement the permanent exhibits.