6MT4 — Brown Cabin Seaplane Base, Libby, MT

Non-ToweredLibby, MT • 3,340' MSL

6MT4 WeatherLive METAR & TAF

Wind Component

6MT4 has 1 runway. The longest is 11W/29W at 12,000 ft × 500 ft (water).

11W/29WNo runway lights · Right traffic 29W12,000 ft × 500 ftWater

FAA NASR data, cycle 2026-09-03

6MT4 field elevation is 3,340 ft MSL. The standard traffic pattern altitude at 6MT4 is 4,340 ft MSL (1,000 ft AGL).

Field elevation3,340 ft MSL

Pattern altitude4,340 ft MSL1,000 ft AGL · standard

Control towerNon-towered

FAA NASR data, cycle 2026-09-03

Check 6MT4 against your personal minimums, plan a route to it, and see the best runway for the current wind — free.

No, 6MT4 is a non-towered airport.

6MT4 has 1 runway (11W/29W). The longest runway is 12,000 feet.

6MT4 uses the standard traffic pattern altitude of 1,000 feet AGL — about 4,340 feet MSL at a field elevation of 3,340 feet.

6MT4 (Brown Cabin Seaplane Base) has a field elevation of 3,340 feet MSL.

6MT4 (Brown Cabin Seaplane Base) is located in Libby, MT.