IS55 — Morton Airport, La Harpe, IL

Non-ToweredLa Harpe, IL • 705' MSL

IS55 WeatherLive METAR & TAF

IS55 has 1 runway. The longest is 18/36 at 2,525 ft × 100 ft (turf).

18/36No runway lights2,525 ft × 100 ftTurf

FAA NASR data, cycle 2026-09-03

IS55 field elevation is 705 ft MSL. The standard traffic pattern altitude at IS55 is 1,710 ft MSL (1,000 ft AGL).

Field elevation705 ft MSL

Pattern altitude1,710 ft MSL1,000 ft AGL · standard

Control towerNon-towered

FAA NASR data, cycle 2026-09-03

Check IS55 against your personal minimums, plan a route to it, and see the best runway for the current wind — free.

No, IS55 is a non-towered airport.

IS55 has 1 runway (18/36). The longest runway is 2,525 feet.

IS55 uses the standard traffic pattern altitude of 1,000 feet AGL — about 1,710 feet MSL at a field elevation of 705 feet.

IS55 (Morton Airport) has a field elevation of 705 feet MSL.

IS55 (Morton Airport) is located in La Harpe, IL.