ENNIS, MT · 5 FAA charts · cycle 6 Aug 2026
2 published instrument approaches: 2 RNAV (GPS), serving 2 runway ends.
| Chart | Amendment | ||
|---|---|---|---|
 | RNAV (GPS) RWY 16 | 2 | |
 | RNAV (GPS) RWY 34 | 1 |
| Chart | Amendment | ||
|---|---|---|---|
 | ENNIS TWO (OBSTACLE) (RNAV) | — |
| Chart | Amendment | ||
|---|---|---|---|
 | TAKEOFF MINIMUMS | — | |
 | ALTERNATE MINIMUMS | — |
Minimums pages cover a whole volume, so the same document is shared by every airport in it.
From the FAA NASR 28-day subscription, cycle 6 Aug 2026.
| Service | Frequency | Call sign |
|---|---|---|
| CTAF | 122.8 | |
| Approach | 118.975 | Big Sky |
Civil VHF frequencies from the FAA NASR 28-day subscription. Discrete sector and military frequencies are not listed.
| Runway | Length | Width | Surface | Lighting |
|---|---|---|---|---|
| 16/34 | 7,600 ft | 100 ft | Asphalt Excellent | Medium intensity |
| 16 177°T | PAPI (4-box) 3° · right-hand circuit | |||
| 34 357°T | PAPI (4-box) 3° | |||
Runway and approach-aid data from the FAA NASR 28-day subscription.
45.2757250, -111.6489160
5,432 ft6 nm SEPaste the coordinates into a simulator’s world map to drop straight onto the field.
Published verbatim from the FAA NASR subscription. Abbreviations are the FAA's own.
Ennis Big Sky’s instrument coverage is compact but balanced: two RNAV (GPS) approaches serve both ends of runway 16/34, so neither direction lacks a published approach. The single 7,600 ft runway provides substantial available distance, but no second alignment is available. With one ODP and no airport diagram, the terminal chart set remains notably lean.
Bozeman Yellowstone International stands apart among nearby fields with 25 charts, giving it much broader coverage than KEKS. Ruby Valley Field and Dillon each have six, Yellowstone has five and Bert Mooney has seven, placing their chart sets much closer in scale. The Great Falls Sectional supplies wider VFR context beyond the airport-specific instrument procedures.
| ID | Airport | City | Distance | Charts |
|---|---|---|---|---|
| KRVF | Ruby Valley Fld | TWIN BRIDGES, MT | 32 nm NW | 6 |
| KBZN | Bozeman Yellowstone Intl | BOZEMAN, MT | 37 nm NE | 25 |
| KDLN | Dillon | DILLON, MT | 38 nm W | 6 |
| KWYS | Yellowstone | WEST YELLOWSTONE, MT | 42 nm SE | 5 |
| KBTM | Bert Mooney | BUTTE, MT | 54 nm NW | 7 |
| KLVM | Mission Fld | LIVINGSTON, MT | 57 nm NE | 5 |
5 current FAA charts for Ennis Big Sky, including 2 instrument approachs. All are free to download as PDFs from this page, from the 6 August 2026 cycle.
CTAF 122.8. Full civil VHF list, with sector notes, is in the frequencies table on this page — from the FAA NASR subscription.
Ennis Big Sky has 1 runway. The longest is 16/34 at 7,600 ft by 100 ft, asphalt. Full runway dimensions, lighting and approach aids are listed on this page.
No ILS is published. In total KEKS has 2 published instrument approaches, of which 2 are RNAV (GPS).
The field elevation is 5,432 ft. At that height the air is thin enough to matter: take-off and landing distances are longer than the same aircraft would need at sea level, and the effect worsens as temperature rises. The approach charts carry the altitudes that apply.
No — Ennis Big Sky has no control tower. Traffic co-ordinates on a common frequency rather than with a controller, which is listed in the frequencies table on this page.
They are from the FAA cycle effective 6 August 2026, which is superseded on 3 September 2026. We publish each new cycle on its effective date. They are for flight simulation and reference only — not for real-world navigation.
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