Region
Yukon
6
British Columbia
3
Prudhoe Bay to Delta Junction route
3
Alaska Highway corridor
2
Mackenzie River Delta
2
Mackenzie River Valley
2
North Slope
2
Tetlin National Wildlife Refuge
2
Glennallen to Palmer route
1
Interior Alaska
1
National Petroleum Reserve in Alaska (NPRA)
1
Northwest Territories
1
Prudhoe Bay to Alaska/Canada border (Highway) route
1
Tetlin Junction region
1