Topic
Juneau Icefield (Alaska and B.C.)
13
Men
13
Surveying equipment
Ice
12
Snow
11
Camps
7
Airplanes
6
Research
6
Glaciers
5
Mountains
5
Landscape photographs
4
Scientific equipment
4
Hiking
3
Maintenance & repair
3
Digging
2
Lakes & ponds
2
Shelters
2
Shovels
2
Aerial views
1
Eating & drinking
1
Maynard M
1
Miller
1
Motion Pictures
1
Motion pictures
1
Parachutes
1
Rocks
1
Skiing
1
Smoking
1
Steamboats
1