Crater Lake National Park, Oregon, USA

The Pinnacles

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Crater Lake National Park, Oregon. Pinnacles formation, eroded ash flow. The vertcal forms mark where staem vents existed in the ash flow, hardening the ash and making it more resistent to erosion. Oregon. Crater Lake National Park. © 2005 Bill Pogue

Caption

Crater Lake National Park, Oregon. Pinnacles formation, eroded ash flow. The vertcal forms mark where staem vents existed in the ash flow, hardening the ash and making it more resistent to erosion.
Image number: 1091804

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