Big Southern Butte Airport
U46 · Blackfoot, ID · Non-towered · Print kneeboard
Nearby now
Loading…
Weather
METAR observed
Loading current weather…
TAF forecast
Loading forecast…
Sun & FAA night2026-08-04 · night begins 09:23 PM
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:53 AM | 11:53Z |
| Sunrise | 06:25 AM | 12:25Z |
| Sunset | 08:51 PM | 02:51Z |
| Evening civil twilight Loggable night begins | 09:23 PM | 03:23Z |
Plan a flight from U46
Winds aloft NOAA forecast · 3,000 to 53,000 ft
Loading winds aloft…
Advisories
NOTAMs
Loading NOTAMs…
Pilot reports
Loading PIREPs…
Airspace hazards
Checking advisories…
Runways
RWY 19LEFT traffic
- Heading
- 193° mag · 209° true
- Dimensions
- 2,600 × 110 ft
- TPA
- 6,100 ft MSL (≈1,000 AGL) · standard
- Surface
- Dirt
- CTAF
- 122.9
Enter the left downwind (heading 013°) on the 45° at 6,100 ft MSL (≈1,000 AGL).
More details — RWY 19
- Approach obstacle
- Road, 14 ft, 0 ft from threshold, 100 ft L of centerline
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates
| Runway | Length | Your margin |
|---|---|---|
| 01/19 | 2,600 ft |
Prefer one flat page? Full runway details for U46 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the U46 kneeboard →
Comms & NavAids
Communication frequencies
Taxi & takeoff
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
PIH 112.60
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| PIH · Pocatello | VOR/DME | 112.60 · 73X | High | r316° / 38.1 NM |
Prefer one flat list? All U46 frequencies →
Charts & procedures
Airport info
Airport information
- FAA LID
- U46
- Coordinates
- 43.4325, -113.0556
- Elevation
- 5,073 ft MSL
- Magnetic variation
- 16E
- Sectional chart
- SALT LAKE CITY
- Airport use
- Public
- Control tower
- No
- ARTCC
- SALT LAKE CITY (ZLC)
- Flight service (FSS)
- BOISE · 122.6 · 1-800-WX-BRIEF
- NOTAM facility
- BOI
- Attendance
- UNATNDD
- Segmented circle
- Yes
- Wind indicator
- yes
- Activated
- 1951/06
- Distance from city
- 10 W
Night operations
- Pilot-controlled lighting
- Usually keyed on CTAF 122.9 — confirm the click sequence in the Chart Supplement ↗
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
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns
Ownership & management 2 contacts
Remarks FAA · 8 notes
General
- NO WINTER MAINTENANCE.
- LIVESTOCK ON & INVOF ARPT.
- RWY 01/19 SFC COND POOR DUE TO LIVESTOCK DMG, GND VEHICLES, RODENTS, & VEGETATION.
- RY 01/19 +1.5 FT BERM & -1 FT DITCH ADJACENT TO ENTIRE PERIMETER OF RY.
- FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
- APRT LCTD IN DESOLATE AREA - NO SVCS AVBL.
Runways
- 01/19 EDGES & THLDS MKD WITH WHITE ROCK BOUNDARY MKRS (BMS).
Obstructions
- 14 FT RD 150 FT ON EXTDD CNTRLN.
Nearby airports
Loading nearby conditions…
Also nearby: U37 Midway Airport (11 NM) · U48 Coxs Well Airport (15 NM) · ID36 King Mountain Glider Park (private) (23 NM) · 0U7 Hollow Top Airport (24 NM) · U97 Howe Airport (25 NM)
About U46
Big Southern Butte Airport (U46) is an airport in Blackfoot, ID, at 5,073 ft MSL. It has 1 runway, the longest 2,600 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for U46, refreshed from the Aviation Weather Center and FAA NASR.
Does U46 have a control tower?
No. Big Southern Butte Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at U46?
Big Southern Butte Airport has 1 runway; the longest is 2,600 ft. See the Runways section for headings, surface, and lighting.
Where is U46?
Big Southern Butte Airport is in Blackfoot, ID, at an elevation of 5,073 ft MSL. Coordinates: 43.4325, -113.0556.
Fly out of U46 often?
Save U46 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.
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 U46 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.