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Pinnacles National Monument
Natural Features & Ecosystems
 
Flashlights are required in the cave.

The Balconies Cave is a narrow canyon with a roof of talus.

Pinnacles National Monument gets its name from rock spires and crags that are remnants of an ancient volcano. The volcano eroded over millions of years as it moved northward along the San Andreas Fault. Rock debris in the form of boulders has weathered and settled, leaving behind spires of volcanic rock and talus caves.

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No Pets

Did You Know?
Dogs are not permitted on any park trails. This allows for more frequent wildlife sightings, and ensures that other visitors will not be annoyed or frightened by dogs. You can take dogs on leashes on most US Forest Service trails.
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Last Updated: December 20, 2006 at 16:44 MST