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Earth Sculptures

We're not talking Detroit here, but rather the distinctly non-Detroit geological formations exposed near Mount Diablo State Park's southern entrance. The sandstone outcrops of Rock City are some of the Bay Area's showstopper landforms, especially the dramatically erosion-scoured Wind Caves and the noble knob called Sentinel Rock (reached by stone steps with the aid of steel cables).

This stony garden of undulating, pockmarked sandstone and rock-set pines--a painless amble from Live Oak Campground--is one big invitation to wander. And if Rock City's hoodoos have your geological curiosity piqued, take the 6.25-mile Trail Through Time (which passes through the area) to learn more about Mount Diablo's tumultuous biography.

Utrip Tips

*While you're here, you can always check out:
Gibraltar and Sentinel Rocks
Fossil Ridge
The Trail Through Time - A Geology Journey

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