In the Valley of Ten Thousand Smokes a stream carves a canyon through rock formed during the 1912 eruption of nearby Novarupta Volcano. The snowcapped peaks are Mount Griggs and Mount Katmai (far right), part of an active system of ten volcanoes surrounding the valley, a hundred miles south of the proposed Pebble mine.
Going underground, expedition members enter Hang En, a cave tunneled out by the Rao Thuong River. Dwindling to a series of ponds during the dry months, the river can rise almost 300 feet (91 meters) during the flood season, covering the rocks where cavers stand.
Photograph by Carsten Peter
A lynx sits on a snow-covered rock.
Scottish Highlands
A lizard at Zion National Park seeking the warm morning sun
This picture is from a place called “the world’s end,” Tjøme in Norway. The temperature was minus 12º Celsius, freezing cold. Photograph by Audun Wigen





