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. On the walk up the circular stairway to the observation deck, visitors are treated to a look at ancient marine fossils embedded in the sandstone walls of the summit building. In the rotunda they are reminded of Mt. Diablo's importance as a survey point. Above the rotunda is a beacon, historically important to aviators and now lighted once a year on December 7 in memory of those who lost their live at Pearl Harbor.