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Rhyolite Cliffs - Condor Gulch Trail

Pinnacles National Monument

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ADDED: Feb 2, 2005 14:32

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Rhyolite Outcrops >

This view of rhyolite cliffs is near the falls along the Condor Gulch Trail. Rhyolite is a volcanic rock that is similar to granite in composition (mostly quartz and feldspar) but because if formed from rapidly-cooling lava ejected from the volcano, mineral crystals are too small to see.