| FAA Information Effective: | 2013-12-12 |
| Airport Identifier: | 1S1 |
| Airport Status: | Operational |
| Longitude/Latitude: | 116-30-07.4000W/48-59-25.7000N -116.502056/48.990472 (Estimated) |
| Elevation: | 1758 ft / 535.84 m (Estimated) |
| Land: | 39 acres |
| From nearest city: | 0 nautical miles W of Porthill, ID |
| Location: | Boundary County, ID |
| Magnetic Variation: | 20E (1985) |
| Ownership: | Publicly owned |
| Owner: | State Of Id, 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 1/2 SEGMENTED CIRCLE. |
| Control Tower: | No |
| Landing fee charge: | No |
| Sectional chart: | Great Falls |
| Region: | ANM - Northwest Mountain |
| Boundary ARTCC: | ZSE - Seattle |
| Tie-in FSS: | BOI - Boise |
| FSS on Airport: | No |
| FSS Toll Free: | 1-800-WX-BRIEF |
| NOTAMs Facility: | BOI (NOTAM-d service avaliable) |
| CTAF: | 122.800 |
| Unicom: | 122.800 |
| Airframe Repair: | NONE |
| Power Plant Repair: | NONE |
| Bottled Oxygen: | NONE |
| Bulk Oxygen: | NONE |
| Dimension: | 3650 x 175 ft / 1112.5 x 53.3 m |
| Surface: | TURF, Good Condition |
| Runway 15 | Runway 33 | |
|---|---|---|
| Longitude: | 116-30-11.9106W | 116-30-02.9262W |
| Latitude: | 48-59-43.4954N | 48-59-07.9609N |
| Elevation: | 1758.00 ft | 1748.00 ft |
| Alignment: | 127 | 127 |
| Traffic Pattern: | Left | Left |
| Obstruction: | 60 ft trees, 880.0 ft from runway, 100 ft left of centerline, 14:1 slope to clear | 16 ft road, 300.0 ft from runway, 18:1 slope to clear |
| NO WINTER MAINTENANCE. |
| AIRCRAFT PARKING LIMITED TO TWO HOURS IN CUSTOMS TERMINAL AREA. |
| RY 15 DO NOT USE ASPH TWY FOR TKOF. |
| +25' HOP POLES LOCATED ADJACENT TO BOTH SIDES OF RWY. |