Mountaineer Group Descends Into The Maccarthy Gap On The King Trench Route, Mt. Logan, Kluane National Park, Yukon Territory, Canada, Summer PacificStock
Chinstrap Penguin (Pygoscelis antarctica); Half Moon Island, South Shetland Islands, Antarctica PacificStock
A dropped Iditarod sled dog howls at the Finger Lake checkpoint during the 2013 Iditarod, Southcentral Alaska PacificStock
Grizzly bear (Ursus arctos) fishing for sockeye salmon at Brooks Falls in Katmai National Park & Preserve, Southwest Alaska; Alaska, United States of America PacificStock