Maddox Ranch Co Airport
3MT4 has 2 runways. The longest is 4/22 at 3,650 ft × 50 ft (turf/gravel).
FAA NASR data, cycle 2026-09-03
3MT4 field elevation is 2,589 ft MSL. The standard traffic pattern altitude at 3MT4 is 3,590 ft MSL (1,000 ft AGL). Fuel available at 3MT4: 100LL.
FAA NASR data, cycle 2026-09-03
CTAF 122.8 MHz — 3MT4 is non-towered; self-announce position and intentions on CTAF.
Check 3MT4 against your personal minimums, plan a route to it, and see the best runway for the current wind — free.
No, 3MT4 is a non-towered airport. The CTAF frequency is 122.8 MHz.
3MT4 has 2 runways (4/22, 11/29). The longest runway is 3,650 feet.
Runway 4/22 is the longest at 3MT4 — 3,650 ft × 50 ft, turf/gravel.
3MT4 uses the standard traffic pattern altitude of 1,000 feet AGL — about 3,590 feet MSL at a field elevation of 2,589 feet.
Yes. 3MT4 (Maddox Ranch Co Airport) has 100LL available. Call the field for hours, self-serve availability and price.
3MT4 (Maddox Ranch Co Airport) has a field elevation of 2,589 feet MSL.
3MT4 (Maddox Ranch Co Airport) is located in Chinook, MT.