3U9 Boulder Airport

Boulder, Montana, United States

Not for navigation. Data: OurAirports (public domain); FAA NASR (US Government public domain), updated Nov 8, 2026.

Airport facts

Ident: 3U9
Type: Small airport
Public use: Yes
Municipality: Boulder
Region: Montana
Country: United States
Elevation: 4,968 ft (1,514 m)
Coordinates: 46.2116° N 112.1060° W
46°12′42″N 112°06′22″W
Towered: No
Wikipedia: Boulder Airport
Chart Supplement: Chart Supplement (opens in a new tab)2611 3U9

Runways

Runway	Length × width	Surface	Lighted	Status
11/29	3,675 × 72 ft	Turf / F	No	Open

Frequencies

Type	Name	MHz
CTAF		122.900

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