Region
United States
23
Canada
18
East Asia
8
Japan
5
Pacific Rim
4
Prudhoe Bay to Valdez route
2
Alaska Highway corridor
1
Alberta
1
Alberta to Saskatchewan route
1
Arctic Coastal Plain/Mackenzie River Delta/Mackenzie River route
1
Arctic region
1
Canada, Southwestern
1
Glennallen to Palmer route
1
Mackenzie River Valley
1
North Slope
1
Point Thomson
1
Prudhoe Bay
1
Valdez
1