| World / USA / Oregon / Three Rivers, 23 km from center | Coordinates: 43°42'53"N 121°13'49"W |
Formed a few hundred thousand years ago by large explosive eruptions, it contains Paulina Lake (west) and East Lake, separated by a 7,300 year old cinder cone. Thick lava flows, including the 1,300 year-old Big Obsidian Flow, line the caldera.
Category: lake volcano caldera
place comments: |
16 months ago geopher | +5 |
 
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Camping, fishing, a (very) small hot spring, and a nature trail through a massive obsidian flow. Very, very cool! | ||||
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