#36746: Umpqua Rocks Geologic Area

Visitors can experience millions of years of geologic time in just one day while traveling The Rogue-Umpqua Scenic Byway. Eroded remains of volcanic rock has resulted in numerous, jagged, vertical spires. Rattlesnake Rock rises above the North Umpqua River.
Public Domain. Courtesy of Greg Morgan of the BLM
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