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Airport Index 1S1 Weather Email Us Help |
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IFR Enroute Charts
at skyvector.com Click on airport for details, drag to scroll around. Zoom using +/- keys. |
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| Ops | Comms | Services | Owner | Runways | IFR Procs | Remarks |
| FAA Identifier: | 1S1 (One-Sierra-One) |
|---|---|
| Lat/Lng: | 48.9957852778, -116.501044167 48-59-44.8270N, 116-30-03.7590W Estimated |
| Elevation: | 1756 feet Estimated |
| Magnetic Variation: | 20E, (1985), [16E (2008)] |
| Sectional: | GREAT FALLS |
| From City: | in Porthill |
| Use: | Open to the public |
|---|---|
| Ownership: | Publicly owned |
| Activation: | 09/1968 |
| Control Tower: | no |
| ARTCC: | Seattle Center (ZSE) |
| FSS: | Boise FSS (BOI) |
| NOTAMs and Weather: | BOI NOTAM-D service at airport |
| Wind Indicator: | Unlighted |
| Segmented Circle: | yes 1/2 Segmented Circle. |
| Landing Fee: | no |
| CTAF: | 122.800 |
|---|---|
| UNICOM: | 122.800 |
| Airframe Repair: | None |
|---|---|
| Powerplant Repair: | None |
| Bottled Oxygen: | None |
| Bulk Oxygen: | None |
| Transient Storage: | Tie-Down |
Based Aircraft
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Annual Operations
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Ownership
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| Runways: | 15/33 |
|---|
| Length: | 3650 feet |
|---|---|
| Width: | 175 feet |
| Surface: | Grass / Sod, Good Condition |
| End 15 | End 33 | |
|---|---|---|
| Runway Markings: | 15/33 Edges and Thrs Marked with White Rocks. | |
| Gradient: | 0.0 | 0.0 |
| Objects: | Trees Numerous Obstns in Approach to Runway 15. |
Road |
| Objects affecting Navigable Airspace (CFR part 77): | Utility runway with a visual approach | Utility runway with a visual approach |
| Object Clearance Slope: | 14:1 | 18:1 |
| Object Height: | 60' AGL | 16' AGL |
| Object Distance: | 880' Along centerline 100' Left of centerline |
300' Along centerline 0B' |
| • | A30-15/33-Rcmd Land Runway 33; Takeoff Runway 15 When Wind Condition Permits. |
|---|---|
| • | No Winter Maintenance. |
| • | Aircraft Parking Limited to Two Hours in Customs Terminal Area. |
| • | Runway 15 Do not Use Asph Taxiway for Takeoff. |
| • | +25' Hop Poles Located Adjacent to Both Sides of Runway. |
| • | (E84) Non Standard - Semi Circle. |
[Beta] This information is current as of the date at the top of the page. We're working on updates to these pages for all US airports, and will be adding information and current weather (and other goodies) in the near future. As with most information on this website, this page is generated based on FAA data, with automatic translations done via computer. You can also directly read the A/FD via the green icon link at the top of the page, which is the FAA text, and sometimes provides a different translation of codes. Please email me (using link at top-right of this page) if you see information which is confusing, misleading, or wrong....Or have suggestions for additions/changes.
