The Peninsula Airport
21MU has 1 runway. The longest is 18/36 at 2,800 ft × 60 ft (turf).
FAA NASR data, cycle 2026-09-03
21MU field elevation is 1,015 ft MSL. The standard traffic pattern altitude at 21MU is 2,020 ft MSL (1,000 ft AGL).
FAA NASR data, cycle 2026-09-03
Check 21MU against your personal minimums, plan a route to it, and see the best runway for the current wind — free.
No, 21MU is a non-towered airport.
21MU has 1 runway (18/36). The longest runway is 2,800 feet.
21MU uses the standard traffic pattern altitude of 1,000 feet AGL — about 2,020 feet MSL at a field elevation of 1,015 feet.
21MU (The Peninsula Airport) has a field elevation of 1,015 feet MSL.
21MU (The Peninsula Airport) is located in Shell Knob, MO.