Added by Cassidy Walker
Views of volcanic spires in canyon walls.
These needle-like formations of rock, called fossil fumaroles, projecting from the Sand Creek Canyon floor, were formed under sheets of volcanic pumice that preceded Mazama's collapse. As the surface of the hot pumice cooled over the years, steam and gases were released by the hot rocks underneath through vents and tubes that were welded into cement hardness by their passage. These ancient vents now stand alone due to the erosion of the surrounding softer materials.
This trail makes for an easy walk along the rim of Pinnacle Valley, and ends at the Crater Lake National Park boundary.
- Good walking shoes
- Sun protection
Please respect the places you find on The Outbound.
Always practice Leave No Trace ethics on your adventures. Be aware of local regulations and don't damage these amazing places for the sake of a photograph. Learn More
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