Edgar G Obie
S71 · Chinook, MT · Non-towered · Print kneeboard · Open on the map
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Weather
METAR observed
TAF forecast
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Sun & FAA night2026-09-18 · night begins 07:55 PM
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:26 AM | 12:26Z |
| Sunrise | 06:58 AM | 12:58Z |
| Sunset | 07:24 PM | 01:24Z |
| Evening civil twilight Loggable night begins | 07:55 PM | 01:55Z |
Plan a flight from S71
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
NOTAMs · Loading NOTAMs…
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Runways
RWY 26LEFT traffic
- Heading
- 264° mag · 280° true
- Dimensions
- 4,000 × 75 ft
- TPA
- 3,216 ft MSL · 800 AGL · charted
- Surface
- Asphalt
- Lights
- 2-light PAPI (left) (4°)
- CTAF
- 122.8
Enter the left downwind (heading 084°) on the 45° at 3,216 ft MSL.
More details — RWY 26
- Threshold elev
- 2,409 ft
- Markings
- basic
- Threshold crossing height
- 37 ft
- TDZ elevation
- 2,410 ft
Pattern side: FAA NASR · TPA charted (NASR) · layout: FAA runway-end coordinates
| Runway | Length | Your margin |
|---|---|---|
| 08/26 | 4,000 ft |
Prefer one flat page? Full runway details for S71 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the S71 kneeboard →
Comms & NavAids
Communication frequencies
Before taxi
Taxi & takeoff
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
HVR 114.65
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| HVR · Havre | VOR/DME | 114.65 · 93Y | Low | r065° / 20.9 NM |
Prefer one flat list? All S71 frequencies →
Charts & procedures
Airport info
Airport information
- FAA LID
- S71
- Coordinates
- 48.5921, -109.2506
- Elevation
- 2,416 ft MSL
- Magnetic variation
- 16E
- Sectional chart
- GREAT FALLS
- Airport use
- Public
- Control tower
- No
- Weather station
- AWOS-AV · 118.35 · ☎ 406-357-3453
- ARTCC
- SALT LAKE CITY (ZLC)
- Flight service (FSS)
- GREAT FALLS · 122.3 · 1-800-WX-BRIEF
- NOTAM facility
- GTF
- Attendance
- ALL 0700-1900
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- lighted
- Activated
- 1947/12
- Distance from city
- 1 W
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- ACTVT PAPI RWY 26; MIRL RWY 08/26 DAWN-DUSK - CTAF. AFTER DUSK MIRL ON CONSLY TIL DAWN. on 122.8 — Chart Supplement ↗
Runway lighting aids — 26: 2-light PAPI (left).
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.
Services fuel · repairs · oxygen · attendance
- Fuel available
- 100LL
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- MINOR
- Powerplant service
- MINOR
- Parking
- tiedowns
- Other services
- Agricultural, Charter, Instruction
Ownership & management 2 contacts
Remarks FAA · 5 notes
General
- FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
- 226 FT AGL SMOKE STACK 1.1 MI FM 26 THR.
Lighting
- ACTVT PAPI RWY 26; MIRL RWY 08/26 DAWN-DUSK - CTAF. AFTER DUSK MIRL ON CONSLY TIL DAWN.
Fuel
- SELF SERVICE CREDIT CARD 24/7
Attendance
- CELL 406-799-6516
Nearby airports
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Also nearby: 3MT4 Maddox Ranch Company (private) (9 NM) · 48S Harlem (19 NM) · 6U6 Hogeland (28 NM) · 13MT Sorenson (private) (35 NM) · 9U0 Turner (37 NM)
About S71
Edgar G Obie (S71) is an airport in Chinook, MT, at 2,416 ft MSL. It has 1 runway, the longest 4,000 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for S71, refreshed from the Aviation Weather Center and FAA NASR.
Does S71 have a control tower?
No. Edgar G Obie is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at S71?
Edgar G Obie has 1 runway; the longest is 4,000 ft. See the Runways section for headings, surface, and lighting.
Where is S71?
Edgar G Obie is in Chinook, MT, at an elevation of 2,416 ft MSL. Coordinates: 48.5921, -109.2506.
More about S71
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open S71 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
Something here wrong or out of date? Report a data problem.