Picture/Photo: Deep gorge carved by the Lethe river in the ash-covered floor of the Valley of Ten Thousand smokes. Katmai National Park

Deep gorge carved by the Lethe river in the ash-covered floor of the Valley of Ten Thousand smokes. Katmai National Park

Deep gorge carved by the Lethe river in the ash-covered floor of the Valley of Ten Thousand smokes. Katmai National Park, Alaska, USA. Katmai