| FAA Information Effective: | 2013-12-12 | 
| Airport Identifier: | LL14 | 
| Airport Status: | Operational | 
| Longitude/Latitude: | 088-00-34.0000W/42-20-18.0000N -88.009444/42.338333 (Estimated) | 
| Elevation: | 823 ft / 250.85 m (Estimated) | 
| Land: | 0 acres | 
| From nearest city: | 1 nautical miles SE of Grayslake, IL | 
| Location: | Lake County, IL | 
| Magnetic Variation: | () | 
| Ownership: | Privately owned | 
| Owner: | Northwestern Lake Forest Grayslake | 
| Address: | 1475 East Belvidere Rd Grayslake, IL 60030 | 
| Phone number: | 847-535-8950 | 
| Manager: | Roger Wojtowicz | 
| Address: | 660 Westmoreland Rd Grayslake, IL 60045 | 
| Phone number: | 847-535-6117 | 
| Airport Use: | Private | 
| Wind indicator: | Yes | 
| Control Tower: | No | 
| Lighting Schedule: | SS-SR | 
| Beacon Color: | Clear-Green-Yellow (heliport) | 
| Sectional chart: | Chicago | 
| Region: | AGL - Great Lakes | 
| Boundary ARTCC: | ZAU - Chicago | 
| Responsible ARTCC: | ZAU - Chicago | 
| Tie-in FSS: | IKK - Kankakee | 
| FSS Toll Free: | 1-800-WX-BRIEF | 
| Dimension: | 50 x 50 ft / 15.2 x 15.2 m | 
| Surface: | CONC, | 
| Runway H1 | Runway | |
|---|---|---|
| Traffic Pattern: | Left | Left | 
| PRVDD VFR OPNS AND PVT USE ONLY; COMMUNICATION COORDINATED BETWEEN LAKE FOREST HOSPITAL PAD AND C81; TKOF/LNDG AREA MKD. |