| FAA Information Effective: | 2013-12-12 | 
| Airport Identifier: | U91 | 
| Airport Status: | Operational | 
| Longitude/Latitude: | 115-52-46.0000W/42-22-23.9000N -115.879444/42.373306 (Estimated) | 
| Elevation: | 5134 ft / 1564.84 m (Surveyed) | 
| Land: | 35 acres | 
| From nearest city: | 0 nautical miles S of Grasmere, ID | 
| Location: | Owyhee County, ID | 
| Magnetic Variation: | 16E (1985) | 
| Ownership: | Publicly owned | 
| Owner: | State Of Idaho Itd, Div Aero | 
| Address: | Box 7129 Boise, ID 83707-1129 | 
| Phone number: | 208-334-8775 | 
| Manager: | Division Admin | 
| Address: | Box 7129 Boise, ID 83707-1129 | 
| Phone number: | 208-334-8775 | 
| Airport Use: | Open to public | 
| Wind indicator: | Yes | 
| Segmented Circle: | Yes | 
| Control Tower: | No | 
| Landing fee charge: | No | 
| Sectional chart: | Salt Lake City | 
| Region: | ANM - Northwest Mountain | 
| Boundary ARTCC: | ZLC - Salt Lake City | 
| Tie-in FSS: | BOI - Boise | 
| FSS on Airport: | No | 
| FSS Toll Free: | 1-800-WX-BRIEF | 
| NOTAMs Facility: | BOI (NOTAM-d service avaliable) | 
| CTAF: | 122.900 | 
| Airframe Repair: | NONE | 
| Power Plant Repair: | NONE | 
| Bottled Oxygen: | NONE | 
| Bulk Oxygen: | NONE | 
| Dimension: | 2750 x 150 ft / 838.2 x 45.7 m | 
| Surface: | TURF-DIRT, Fair Condition | 
| Runway 05 | Runway 23 | |
|---|---|---|
| Longitude: | 115-53-03.1400W | 115-52-28.8400W | 
| Latitude: | 42-22-19.0900N | 42-22-28.6400N | 
| Traffic Pattern: | Left | Left | 
| Obstruction: | 4 ft fence, 50.0 ft from runway, 125 ft left of centerline, 12:1 slope to clear | , 50:1 slope to clear | 
| NO WINTER MAINTENANCE. | 
| RY 05/23 SFC MAY BE POOR DUE TO DAMAGE BY LIVESTOCK; GROUND VEHICLES AND RODENTS. | 
| NO TELEPHONE AVBL AT ARPT. | 
| ESTABD PRIOR TO 1959. |