Topic
equipment and supplies
expedition members (crew and personnel)
395
dogs
151
animals
92
ships or boats
89
sled
81
ice
71
airplanes
60
ski
56
sledding
38
Polar Region shelters
33
cameras
26
photographs
24
trail party
21
furniture
18
American flag
17
land and water formations
16
snow removal
15
towers
15
photography
14
recreation
14
carrier
12
tools
10
books
9
equipment
9
scenes
9
construction
8
mountains
8
snowmobiles
8
daily life
7
footwear
7
flag
6
whales
6
Byrd
5
Richard E
5
kitchen
5
portraits
5
skiers
4
harbors
3
hunting
3
maintenance
3
penguins
3
shelters
3
storage
3
worksite
3
South Pole flag
2
bays and coastlines
2
carriers
2
dog
2
helicopter
2
more ...