| FAA Information Effective: | 2013-12-12 | 
| Airport Identifier: | 3LL4 | 
| Airport Status: | Operational | 
| Longitude/Latitude: | 088-12-05.3140W/42-26-50.0700N -88.201476/42.447242 (Estimated) | 
| Elevation: | 815 ft / 248.41 m (Estimated) | 
| Land: | 0 acres | 
| From nearest city: | 2 nautical miles NE of Spring Grove, IL | 
| Location: | Mc Henry County, IL | 
| Magnetic Variation: | 01W (1985) | 
| Ownership: | Privately owned | 
| Owner: | Samuel Hutchinson | 
| Address: | 7814 Pillow Hill Road Spring Grove, IL 60081 | 
| Phone number: | 847-587-0535 | 
| Address: | 
| Airport Use: | Private | 
| Wind indicator: | Yes | 
| Segmented Circle: | No | 
| Control Tower: | No | 
| Landing fee charge: | 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 | 
| Airframe Repair: | NONE | 
| Power Plant Repair: | NONE | 
| Dimension: | 2000 x 100 ft / 609.6 x 30.5 m | 
| Surface: | TURF, | 
| Runway N | Runway S | |
|---|---|---|
| Traffic Pattern: | Left | Left |