ICE FORMATION photos : Alaska Stock Images

999ZZ EQ0156D001

Wide angle view of a sow Polar bear with paw outstretched on the pack ice along the coast in morning, 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, autumn

999ZZ AJ0138D001

Fractured surface ice drifted to the shoreline of Mendenhall Lake, Juneau, Southeast Alaska, Winter

999ZZ CY0142D002

Male and female Inupiaq Eskimo hunters wearing their Eskimo parka's (Atigi) carry a rifle and walking stick while looking out over the Chukchi Sea, Barrow, Arctic Alaska, Summer

999ZZ CY0145D003

Male Inupiaq Eskimo hunter wearing his Eskimo parka (Atigi) and carrying a walking stick while looking out over the Chukchi Sea, Barrow, Arctic Alaska, Summer

999ZZ CY0143D002

Male and female Inupiaq Eskimo hunters wearing their Eskimo parka's (Atigi) carry a rifle and walking stick while looking out over the Chukchi Sea, Barrow, Arctic Alaska, Summer

999ZZ CY0145D002

Male Inupiaq Eskimo hunter wearing his Eskimo parka (Atigi) and carrying a walking stick while looking out over the Chukchi Sea, Barrow, Arctic Alaska, Summer

409IB DY0002D001

Huge iceberg with hole, LeConte Bay, Southeast, Alaska.

999ZV ZA0210D001

United States, Alaska, Inside Passage, College Fjord, Vasser Glacier, tourist on cruise ship has a view of the glacier

999ZV ZA0211D001

United States, Alaska, Inside Passage, Glacier Bay National Park, passengers on cruise ship viewing the glaciers.

999ZV ZA0212D001

United States, Alaska, Inside Passage, Glacier Bay National Park, passengers on cruise ship viewing the glaciers.

999ZV ZA0017D001

Woman mountain biking with a fat tire bike at Spencer Glacier, Chugach National Forest, South-central Alaska; Alaska, United States of America

999ZW ZA2195D001

Man standing in a circular formation (ice tube) on Knik Glacier, Southcentral Alaska, USA

999ZW ZA2196D001

Man skiing near frozen icebergs in winter, Knik Glacier, Southcentral Alaska, USA

999ZW ZA2124D001

Blue ice formation on Knik Glacier in winter, Southcentral Alaska, USA

999ZW ZA1513D001

The view from behind a frozen waterfall along One Mile Creek in the Alaska Range.

999ZW ZA1514D001

The view behind a frozen waterfall along One Mile Creek off the Richarson Highway in the Alaska Range.

999ZW ZA1436N001

A wave-like formation of snow curls around the entrance of a small ice cave in the moraine of Black Rapids Glacier in winter; Alaska, United States of America

999ZW ZA1458D001

A man walks beneath a large ice arch formation detached from the main body of Black Rapids Glacier in winter, Interior Alaska, USA

999ZW ZA1460D001

A man on a split board views a large wall of ice at the Canwell Glacier, Interior Alaska, USA

999ZW ZA0463D001

Scenic view of a Mountain Goat on cliffs overlooking Exit Glacier, Kenai Peninsula, Southcentral Alaska, USA

999ZW ZA0599N001

A man stands in the entrance to a lengthy tunnel beneath the ice of Castner Glacier in the Alaska Range; Alaska, United States of America

999ZW ZA0692N001

A man looks toward the entrance of a cave beneath the ice of Canwell Glacier in the Alaska Range in the winter; Alaska, United States of America

999ZW ZA0710D001

A man packs up his gear after exploring a tunnel beneath the ice of Canwell Glacier in the Alaska Range in winter, Interior Alaska, USA

999ZW ZA0762D001

People cross Root Glacier in Wrangell-St. Elias National Park to participate in guided ice climbing with the Stairway Icefall is in the background, Southcentral Alaska, USA

999ZW ZA0783D001

A climber test his anchor before rappelling in a crevasse on Worthington Glacier, Southcentral Alaska, USA

999ZW ZA0592N001

A man studies a large wall of ice near the terminus of Castner Glacier in the Alaska Range; Alaska, United States of America

999ZW ZA0615N001

Detail on the face of Bear Glacier in Kenai Fjords National Park; Alaska, United States of America

999ZW ZA0694N001

Castner Glacier ice cave in the Alaska Range; Alaska, United States of America

999ZW ZA0736D001

Aurora stretches above a collapsed section of ice covering Castner Creek and the mountains of the Alaska Range.

999ZW ZA0763D001

People cross Root Glacier in Wrangell-St. Elias National Park to participate in guided ice climbing, Southcentral Alaska, USA