M46 — Colstrip Airport, MT

Non-ToweredColstrip, MT • ICAO: KM46 • 3,426' MSL

M46 WeatherLive METAR & TAF

Wind Component

M46 has 1 runway. The longest is 6/24 at 5,100 ft × 75 ft (asphalt).

6/24Lighted5,100 ft × 75 ftAsphalt

FAA NASR data, cycle 2026-09-03

M46 field elevation is 3,426 ft MSL. The standard traffic pattern altitude at M46 is 4,430 ft MSL (1,000 ft AGL).

Field elevation3,426 ft MSL

Pattern altitude4,430 ft MSL1,000 ft AGL · standard

Control towerNon-towered

FAA NASR data, cycle 2026-09-03

CTAF 122.7 MHz — M46 is non-towered; self-announce position and intentions on CTAF.

CTAF122.7

UNICOM122.7

CNTR127.75

Check KM46 against your personal minimums, plan a route to it, and see the best runway for the current wind — free.

No, M46 is a non-towered airport. The CTAF frequency is 122.7 MHz.

M46 has 1 runway (6/24). The longest runway is 5,100 feet.

M46 uses the standard traffic pattern altitude of 1,000 feet AGL — about 4,430 feet MSL at a field elevation of 3,426 feet.

M46 (Colstrip Airport) has a field elevation of 3,426 feet MSL.

M46 (Colstrip Airport) is located in Colstrip, MT.