Nick on the Rocks

Mt. Rainier’s Osceola Mudflow (1x4)

Air date: Dec 28, 2017

5,600 years ago, a Mt. Rainier eruption sent a wall of mud careening down the White River Valley to Tacoma. The Osceola Mudflow created the Enumclaw Plain by burying a formerly rugged Puget Lowland with hundreds of feet of volcanic mud — a plain now home to over 500,000 people.