The Mount Diablo summit tower.
Mount Diablo's summit building was constructed with a rotunda summit tower and an aviation beacon.
Mount Diablo's summit building.
Mount Diablo summit.
The summit building's observation deck.
The summit building's tower.
A memorial compass rose in the summit tower.
Veiws extend westward to San Francisco and the Golden Gate.
Mount Diablo's North Peak (3,557') extends from the summit.
Mount Diablo's visitor center.
Summit picnic area.
The view south.
Mount Diablo summit.
Looking up toward Mount Diablo's summit from the Rock City Area.