Geis Field
4WN4 has 1 runway. The longest is 18/36 at 846 ft × 50 ft (turf).
FAA NASR data, cycle 2026-09-03
4WN4 field elevation is 851 ft MSL. The standard traffic pattern altitude at 4WN4 is 1,850 ft MSL (1,000 ft AGL).
FAA NASR data, cycle 2026-09-03
CTAF 122.9 MHz — 4WN4 is non-towered; self-announce position and intentions on CTAF.
Check 4WN4 against your personal minimums, plan a route to it, and see the best runway for the current wind — free.
No, 4WN4 is a non-towered airport. The CTAF frequency is 122.9 MHz.
4WN4 has 1 runway (18/36). The longest runway is 846 feet.
4WN4 uses the standard traffic pattern altitude of 1,000 feet AGL — about 1,850 feet MSL at a field elevation of 851 feet.
4WN4 (Geis Field) has a field elevation of 851 feet MSL.
4WN4 (Geis Field) is located in Fredonia, WI.