Edgar G Obie Airport
S71 has 1 runway. The longest is 8/26 at 4,000 ft × 75 ft (asphalt).
FAA NASR data, cycle 2026-09-03
S71 field elevation is 2,416 ft MSL. The published traffic pattern altitude at S71 is 3,220 ft MSL (800 ft AGL). Fuel available at S71: 100LL.
FAA NASR data, cycle 2026-09-03
CTAF 122.8 MHz — S71 is non-towered; self-announce position and intentions on CTAF.
Check KS71 against your personal minimums, plan a route to it, and see the best runway for the current wind — free.
No, S71 is a non-towered airport. The CTAF frequency is 122.8 MHz.
S71 has 1 runway (8/26). The longest runway is 4,000 feet.
S71 publishes a traffic pattern altitude of 800 feet AGL — about 3,220 feet MSL — which is not the standard 1,000 feet.
Yes. S71 (Edgar G Obie Airport) has 100LL available. Call the field for hours, self-serve availability and price.
S71 (Edgar G Obie Airport) has a field elevation of 2,416 feet MSL.
S71 (Edgar G Obie Airport) is located in Chinook, MT.