Airport information
- FAA LID
- 48S
- Coordinates
- 48.5661, -108.7730
- Elevation
- 2,643 ft MSL
- Magnetic variation
- 16E
- Sectional chart
- BILLINGS
- Airport use
- Public
- Control tower
- No
- ARTCC
- SALT LAKE CITY (ZLC)
- Flight service (FSS)
- GREAT FALLS
- NOTAM facility
- GTF
- Attendance
- UNATNDD
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- lighted
- Access
- Military landing rights
- Activated
- 1940/04
- Distance from city
- 3 N
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:31 AM | 10:31Z |
| Sunrise | 05:13 AM | 11:13Z |
| Sunset | 09:21 PM | 03:21Z |
| Evening civil twilight Loggable night begins | 10:03 PM | 04:03Z |
Plan a flight from 48S
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- ACTVT MIRL RY 11/29 & PAPI RY 29 - CTAF. on 122.9 — Chart Supplement ↗
Runway lighting aids — 29: 2-light PAPI (left).
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy 11 · 109°
- Pattern
- left (turns left)
- TPA
- 3,600 ft MSL (≈1,000 AGL)
- CTAF
- 122.9
Enter the left downwind for Rwy 11 at 3,600 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 11/29
4,100 ft × 75 ft · Asphalt (Excellent)- Heading
- 109° mag · 125° true
- Threshold elev
- 2,643 ft
- Markings
- basic
- Traffic pattern
- Left
- Heading
- 289° mag · 305° true
- Threshold elev
- 2,600 ft
- Markings
- basic
- VGSI
- 2-light PAPI (left) (3°)
- Traffic pattern
- Left
- Threshold crossing height
- 35 ft
Runway 15/33
1,933 ft × 120 ft · Turf (Poor)- Heading
- 149° mag · 165° true
- Threshold elev
- 2,601 ft
- Traffic pattern
- Left
- Heading
- 329° mag · 345° true
- Threshold elev
- 2,587 ft
- Traffic pattern
- Left
| Runway | Length | Your margin |
|---|---|---|
| 11/29 | 4,100 ft | |
| 15/33 | 1,933 ft |
Communication frequencies
Tower & ground
| CTAF | 122.9 |
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| HVR · Havre | VOR-DME | 111.80 | r071° / 39.7 NM |
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns, hangars
- Other services
- Agricultural
Ownership & management
Remarks FAA
- FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
- ACTVT MIRL RY 11/29 & PAPI RY 29 - CTAF.
- TELEPHONES AVBL IN TERMINAL BLDG. PUSH BUTTON LOCK ON DOOR. KEY 122.9 TO ENTER BLDG.
- MKD WITH WHITE CONES SPACED 200 FT. MOST CONES MISG.
- RWY 15/33 HAS LRG GOPHER HOLES AND TALL GRASS THRUT.
Nearby airports
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 48S 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.
About 48S
Harlem Airport (48S) is an airport in Harlem, MT, at 2,643 ft MSL. It has 2 runways, the longest 4,100 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 48S, refreshed from the Aviation Weather Center and FAA NASR.
Does 48S have a control tower?
No. Harlem Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 48S?
Harlem Airport has 2 runways; the longest is 4,100 ft. See the Runways tab for headings, surface, and lighting.
Where is 48S?
Harlem Airport is in Harlem, MT, at an elevation of 2,643 ft MSL. Coordinates: 48.5661, -108.7730.
Fly out of 48S often?
Save 48S 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.