1116-39556 - Mt. Griggs rises over the ash- and pumice-covered Valley of Ten Thousand Smokes in Katmai National Park. The ash-covered Knife Creek Glaciers can be seen coming out of the valley at right; Alaska, United States of America
1116-39560 - A backpacker crosses the exotic landscape of the ash and pumice-covered Valley of Ten Thousand Smokes in Katmai National Park, with Mt. Katmai (left), Trident Volcano (right), and the Knife Creek Glaciers looming in the distance; Alaska, United States of
1116-39577 - A bus stirs up dust along the park road in Denali National Park while passing underneath a group of Dall sheep (ovis dalli) near the base of Polychrome Mountain; Alaska, United States of America
857-94640 - A mountaineers is melting snow to get drinking water, inside a tent at High Camp on Denali in Alaska. Early morning they are going for a summit push to the highest mountain of Northern America.