Harlem Airport

48S · Harlem, MT · Non-towered · Print kneeboard

Elevation

2,643 ft MSL

Longest runway

4,100 ft 11/29

Runways

Mag var

16E

CTAF 122.9

Nearby now

Loading…

Weather

METAR observed

Loading current weather…

TAF forecast

Loading forecast…

Sun & FAA night2026-08-07 · night begins 09:20 PM

Event	Local (MDT)	UTC
Morning civil twilight Loggable night ends	05:21 AM	11:21Z
Sunrise	05:57 AM	11:57Z
Sunset	08:44 PM	02:44Z
Evening civil twilight Loggable night begins	09:20 PM	03:20Z

Loggable night (§1.1)

09:20 PM → 05:21 AM

Night currency (§61.57)

09:44 PM → 04:57 AM

Plan a flight from 48S

Destination

TAS (kt)Burn (gph)Reserve (hr)Cruise (ft)Max alt (ft)Wind from (°)Wind (kt)

Winds aloft NOAA forecast · 3,000 to 53,000 ft

Loading winds aloft…

Full reports: nearest reporting station

Advisories

NOTAMs

Loading NOTAMs…

All 48S NOTAMs, grouped and decoded

Pilot reports

Loading PIREPs…

All pilot reports near 48S

Airspace hazards

Checking advisories…

Runways

RWY 11LEFT traffic

Heading: 109° mag · 125° true
Dimensions: 4,100 × 75 ft
TPA: 3,600 ft MSL (≈1,000 AGL) · standard
Surface: Asphalt
CTAF: 122.9

Enter the left downwind (heading 289°) on the 45° at 3,600 ft MSL (≈1,000 AGL).

More details — RWY 11

Threshold elev: 2,643 ft
Markings: basic

Condition: Good. Edge lights: Med. Weight bearing: Single wheel 12.5k.

Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates

Will it fit? Your aircraft's required runway length (from the POH) — checked against every runway here

ft · ≥1.5× comfortable, under 1.25× tight · saved across airports

Runway	Length	Your margin
11/29	4,100 ft
15/33	1,933 ft

Prefer one flat page? Full runway details for 48S → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 48S kneeboard →

Comms & NavAids

Communication frequencies

Taxi & takeoff

CTAF

122.9

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	r071° / 39.7 NM

Prefer one flat list? All 48S frequencies →

Charts & procedures

PDF ↗

Chart Supplement ↗

VFR sectional →

Airport info

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 · 122.3 · 1-800-WX-BRIEF
NOTAM facility: GTF
Attendance: UNATNDD
Beacon: white-green (SS-SR)
Segmented circle: Yes
Wind indicator: lighted
Activated: 1940/04
Distance from city: 3 N

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 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, hangars
Other services: Agricultural

Ownership & management 2 contacts

Owner

BLAINE CO-CITY OF HARLEM

BLAINE COUNTY ARPT CMSN, CHINOOK, MT

406-357-3250

Manager

ROD WAGNER

PO BOX 427, HARLEM, MT

(406) 580-7379

Remarks FAA · 4 notes

General

FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.

Runways

MKD WITH WHITE CONES SPACED 200 FT. MOST CONES MISG.
RWY 15/33 HAS LRG GOPHER HOLES AND TALL GRASS THRUT.

Lighting

ACTVT MIRL RY 11/29 & PAPI RY 29 - CTAF.

Nearby airports

Loading nearby conditions…

Also nearby: 3MT4 Maddox Ranch Co Airport (private) (12 NM) · 6U6 Hogeland Airport (18 NM) · S71 Edgar G Obie Airport (19 NM) · 9U0 Turner Airport (23 NM) · M75 Malta Airport (36 NM)

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 in the Comms & NavAids section.

What is the longest runway at 48S?

Harlem Airport has 2 runways; the longest is 4,100 ft. See the Runways section 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.

Get the appSoon

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.