Pyroclastic Flows: Introduction

All traces of the pre-eruption forest were erased by fiery pyroclastic flows. A vibrant new ecosystem is developing, yielding fascinating insights about ecosystem processes.

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USFS Washington State DOT USFS USFS USGS / Peter Lipman USGS / Tom Casadevall University of Washington / Jerry Franklin © Charlie Crisafulli WSU Vancouver / John Bishop CSU Chico / Dave Wood WSU Vancouver / John Bishop Brad Johnson Quinault Indian Nation / Larry Workman UC Riverside / Mike Allen Tim Delano Quinault Indian Nation / Larry Workman WSU Vancouver / John Bishop USFS / Peter Frenzen USFS / Peter Frenzen USFS USFS USFS USFS