Airports 3,901 to 3,950
Big Trout Lake Airport
Casselton Robert Miller Regional Airport
Casselton,
North Dakota,
United States
—
1382 km
(746 nm)
SE
Cheyenne River Health Center Heliport
Eagle Butte,
South Dakota,
United States
—
1383 km
(747 nm)
SE
Port Protection Seaplane Base
Port Protection,
Alaska,
United States
—
1383 km
(747 nm)
WNW
Point Baker Seaplane Base
Cheyenne Eagle Butte Airport
Eagle Butte,
South Dakota,
United States
—
1384 km
(747 nm)
SE
Happy Valley Airport
Westwood Corporation Heliport