| FAA Information Effective: | 2013-12-12 | 
| Airport Identifier: | 81LL | 
| Airport Status: | Operational | 
| Longitude/Latitude: | 089-10-25.3130W/41-34-09.1180N -89.173698/41.569199 (Estimated) | 
| Elevation: | 840 ft / 256.03 m (Estimated) | 
| Land: | 0 acres | 
| From nearest city: | 2 nautical miles NW of Mendota, IL | 
| Location: | Bureau County, IL | 
| Magnetic Variation: | 00E (1985) | 
| Ownership: | Privately owned | 
| Owner: | Dean L. Otterbach | 
| Address: | Rr 1 Mendota, IL 61342 | 
| Phone number: | 815-538-7102 | 
| Manager: | Dean L. Otterbach KEN OTTERBACK 35461 N 2900TH RD MENDOTA, IL 61342 (815) 538-7102 | 
| Address: | Rr 1 Mendota, IL 61342 | 
| Phone number: | 815-538-7102 | 
| Airport Use: | Private | 
| Segmented Circle: | No | 
| Control Tower: | No | 
| Sectional chart: | Chicago | 
| Region: | AGL - Great Lakes | 
| Boundary ARTCC: | ZAU - Chicago | 
| Tie-in FSS: | IKK - Kankakee | 
| FSS on Airport: | No | 
| FSS Toll Free: | 1-800-WX-BRIEF | 
| Dimension: | 1600 x 70 ft / 487.7 x 21.3 m | 
| Surface: | TURF, | 
| Runway NW | Runway SE | |
|---|---|---|
| Traffic Pattern: | Left | Left | 
| OWNER DESIRES ARPT NOT BE CHARTED. | 
| E111:PROVIDED ALL TRAFFIC PATTERN OPERATIONS ARE CONDUCTED NORTH OF THE RWY. |