A person raises their arms to celebrate rocks on the Yampa River.


Geological cliffs.

A World of Stone

The geology of the Western U.S. can’t be better witnessed than drifting through the region’s river canyons. OARS geology trips pair classic river trips in amazing environments with a special emphasis on the amazing rocks and structure and its complex history.

Led by expert geologists, these adventures dive into millions of years of geologic record written in layers of stone. See prehistoric oceans rise and fall, ancient volcanoes ooze molten lava and extinct now-fossilized critters crawl the earth.

Whether you’re looking for a light lesson or an examination of the fine details, join OARS for a fun exploration of the wonders of the earth’s evolution in the best classrooms nature has to offer.

Discover your next OARS Adventure

Rafting past Steamboat rock formation in Utah.

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