Big Sandy
3U8 · Big Sandy, 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 07:58 PM
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:30 AM | 12:30Z |
| Sunrise | 07:01 AM | 13:01Z |
| Sunset | 07:27 PM | 01:27Z |
| Evening civil twilight Loggable night begins | 07:58 PM | 01:58Z |
Plan a flight from 3U8
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
NOTAMs · Loading NOTAMs…
Pilot reports · Loading PIREPs…
Airspace hazards · Checking SIGMETs and G-AIRMETs…
Temporary flight restrictions · Checking for TFRs…
Runways
RWY 13LEFT traffic
- Heading
- 131° mag · 147° true
- Dimensions
- 2,100 × 100 ft
- TPA
- 3,498 ft MSL · 800 AGL · charted
- Surface
- Turf
- CTAF
- 122.9
Enter the left downwind (heading 311°) on the 45° at 3,498 ft MSL.
More details — RWY 13
- Threshold elev
- 2,697 ft
- Approach obstacle
- Pline, 71 ft, 1,600 ft from threshold, 0 ft L/R of centerline — 22:1 slope to clear
- TDZ elevation
- 2,699 ft
Pattern side: FAA NASR · TPA charted (NASR) · layout: FAA runway-end coordinates
| Runway | Length | Your margin |
|---|---|---|
| 06/24 | 3,570 ft | |
| 13/31 | 2,100 ft |
Prefer one flat page? Full runway details for 3U8 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 3U8 kneeboard →
Comms & NavAids
Communication frequencies
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 | r195° / 26.5 NM |
Prefer one flat list? All 3U8 frequencies →
Charts & procedures
Airport info
Airport information
- FAA LID
- 3U8
- Coordinates
- 48.1634, -110.1143
- Elevation
- 2,698 ft MSL
- Magnetic variation
- 16E
- Sectional chart
- GREAT FALLS
- Airport use
- Public
- Control tower
- No
- ARTCC
- SALT LAKE CITY (ZLC)
- Flight service (FSS)
- GREAT FALLS · 122.3 · 1-800-WX-BRIEF
- NOTAM facility
- GTF
- Attendance
- UNATNDD
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- lighted
- Activated
- 1949/10
- Distance from city
- 1 S
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- ACTVT MIRL RWY 06/24 - CTAF. on 122.9 — Chart Supplement ↗
Runway lighting aids — 06: 2-light PAPI (left) · 24: 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
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns, hangars
- Other services
- Agricultural
Ownership & management 2 contacts
Remarks FAA · 3 notes
General
- FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
Lighting
- ACTVT MIRL RWY 06/24 - CTAF.
Obstructions
- PWR LN MKD WITH ORANGE BALLS.
Nearby airports
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Also nearby: 13MT Sorenson (private) (21 NM) · 79S Fort Benton (28 NM) · 14MT Sandy Rock (private) (29 NM) · 45MT Pester (private) (31 NM) · MT01 Owen Bros (private) (33 NM)
About 3U8
Big Sandy (3U8) is an airport in Big Sandy, MT, at 2,698 ft MSL. It has 2 runways, the longest 3,570 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 3U8, refreshed from the Aviation Weather Center and FAA NASR.
Does 3U8 have a control tower?
No. Big Sandy is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at 3U8?
Big Sandy has 2 runways; the longest is 3,570 ft. See the Runways section for headings, surface, and lighting.
Where is 3U8?
Big Sandy is in Big Sandy, MT, at an elevation of 2,698 ft MSL. Coordinates: 48.1634, -110.1143.
More about 3U8
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 3U8 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.