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Hiking
Ice
6
Juneau Icefield (Alaska and B.C.)
6
Snow
6
Men
5
Glaciers
4
Mountains
4
Airplanes
3
Camps
3
Surveying equipment
3
Landscape photographs
2
Boats
1
Bridges
1
Lakes & ponds
1
Motion Pictures
1
Motion pictures
1
Parachutes
1
Research
1
Rocks
1
Scientific equipment
1
Shelters
1
Sunrises & sunsets
1
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