Harlem Airport
48S has 2 runways. The longest is 11/29 at 4,100 ft × 75 ft (asphalt).
FAA NASR data, cycle 2026-09-03
48S field elevation is 2,643 ft MSL. The standard traffic pattern altitude at 48S is 3,640 ft MSL (1,000 ft AGL).
FAA NASR data, cycle 2026-09-03
CTAF 122.9 MHz — 48S is non-towered; self-announce position and intentions on CTAF.
Check K48S against your personal minimums, plan a route to it, and see the best runway for the current wind — free.
No, 48S is a non-towered airport. The CTAF frequency is 122.9 MHz.
48S has 2 runways (11/29, 15/33). The longest runway is 4,100 feet.
Runway 11/29 is the longest at 48S — 4,100 ft × 75 ft, asphalt.
48S uses the standard traffic pattern altitude of 1,000 feet AGL — about 3,640 feet MSL at a field elevation of 2,643 feet.
48S (Harlem Airport) has a field elevation of 2,643 feet MSL.
48S (Harlem Airport) is located in Harlem, MT.