Airport information
- FAA LID
- 23S
- Coordinates
- 47.1791, -113.4450
- Elevation
- 4,235 ft MSL
- Magnetic variation
- 18E
- Sectional chart
- GREAT FALLS
- Airport use
- Public
- Control tower
- Yes
- ARTCC
- SALT LAKE CITY (ZLC)
- Flight service (FSS)
- GREAT FALLS
- NOTAM facility
- GTF
- Attendance
- UNATNDD
- Beacon
- white (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- yes
- Activated
- 1964/08
- Distance from city
- 2 E
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-20
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:57 AM | 10:57Z |
| Sunrise | 05:38 AM | 11:38Z |
| Sunset | 09:33 PM | 03:33Z |
| Evening civil twilight Loggable night begins | 10:13 PM | 04:13Z |
Loggable night (§1.1)
10:13 PM → 04:57 AM
Night currency (§61.57)
10:33 PM → 04:38 AM
Plan a flight from 23S
Runway 16/34
4,575 ft × 75 ft · Turf (Excellent) 16
- Heading
- 162° mag · 180° true
- Traffic pattern
- Left
34
- Heading
- 342° mag · 0° true
- Traffic pattern
- Left
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| MSO · Missoula | VOR-DME | 112.80 | r041° / 30.8 NM |
| DRU · Drummond | VOR | 117.10 | r325° / 34.3 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
Ownership & management
Owner
MONTANA AERONAUTICS DIVISION
PO BOX 200507, HELENA, MT
406-444-2506
Manager
TIM CONWAY
PO BOX 200507, HELENA, MT
406-444-2506
Remarks FAA
- TKOFS TO N NOT RECOMMENDED DUE TO RISING TRRN.
- TREES IN TRANSITIONAL SFC FULL RWY LEN BOTH SIDES.
- BIRDS & WILDLIFE ON & INVOF ARPT.
- SNOW REMOVAL INTMT, CALL AMGR FOR CURRENT CONDS 406-444-2506.
- RWY 34 HAS 1150 FT OVRN AVBL FOR TKOF AND LDG.
- CREW CAR AVBL.
- FOR CD CTC SPOKANE APCH AT 509-742-2522, WHEN APCH CLSD CTC SALT LAKE ARTCC AT 801-320-2568
- RWY 16 DTHR 311 FT FM RWY END FOR 20:1 APCH SLP MKD WITH DBL W CONES.
- RWY 34 SOLAR LGTS FIRST 2/3 OF RWY - SUMMER MONTHS ONLY
- RWY 16 MKD FULL LEN WITH W CONES & REFLECTIVE TAPE - SUMMER MONTHS ONLY
- RWY 34 MKD FULL LEN WITH W CONES & REFLECTIVE TAPE - SUMMER MONTHS ONLY.
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 23S in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator.