81LL — Otterbach Farm Airport, Mendota, IL

Non-ToweredMendota, IL • 840' MSL

81LL WeatherLive METAR & TAF

81LL has 1 runway. The longest is NW/SE at 1,600 ft × 70 ft (turf).

NW/SENo runway lights1,600 ft × 70 ftTurf

FAA NASR data, cycle 2026-09-03

81LL field elevation is 840 ft MSL. The standard traffic pattern altitude at 81LL is 1,840 ft MSL (1,000 ft AGL).

Field elevation840 ft MSL

Pattern altitude1,840 ft MSL1,000 ft AGL · standard

Control towerNon-towered

FAA NASR data, cycle 2026-09-03

Check 81LL against your personal minimums, plan a route to it, and see the best runway for the current wind — free.

No, 81LL is a non-towered airport.

81LL has 1 runway (NW/SE). The longest runway is 1,600 feet.

81LL uses the standard traffic pattern altitude of 1,000 feet AGL — about 1,840 feet MSL at a field elevation of 840 feet.

81LL (Otterbach Farm Airport) has a field elevation of 840 feet MSL.

81LL (Otterbach Farm Airport) is located in Mendota, IL.