Petty Creek Mountain Ranch Private
MT81 · Alberton, 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 08:14 PM
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:49 AM | 12:49Z |
| Sunrise | 07:19 AM | 13:19Z |
| Sunset | 07:44 PM | 01:44Z |
| Evening civil twilight Loggable night begins | 08:14 PM | 02:14Z |
Plan a flight from MT81
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
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Airspace hazards · Checking SIGMETs and G-AIRMETs…
Temporary flight restrictions · Checking for TFRs…
Runways
RWY 16RIGHT trafficRP · charted
- Heading
- 166° true
- Dimensions
- 2,138 × 25 ft
- TPA
- 4,500 ft MSL (≈1,000 AGL) · standard
- Surface
- TURF-DIRT
Enter the right downwind (heading 346°) on the 45° at 4,500 ft MSL (≈1,000 AGL).
More details — RWY 16
- Threshold elev
- 3,480 ft
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates
Headings shown are true (magnetic variation unavailable).
| Runway | Length | Your margin |
|---|---|---|
| 16/34 | 2,138 ft |
Prefer one flat page? Full runway details for MT81 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the MT81 kneeboard →
Comms & NavAids
Nearby navigation aids
MSO 112.80
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| MSO · Missoula | VOR/DME | 112.80 · 75X | Low | r257° / 15.7 NM |
Charts & procedures
No published instrument procedures or Chart Supplement for MT81 — open it on the VFR sectional →
Airport info
Airport information
- FAA LID
- MT81
- Coordinates
- 46.9095, -114.4654
- Elevation
- 3,519 ft MSL
- Sectional chart
- GREAT FALLS
- Airport use
- Private
- Control tower
- No
- ARTCC
- SALT LAKE CITY (ZLC)
- Flight service (FSS)
- GREAT FALLS · 122.3 · 1-800-WX-BRIEF
- Segmented circle
- No
- Activated
- 2020/07
- Distance from city
- 6 S
Ownership & management 2 contacts
Remarks FAA · 2 notes
General
- OWNER DESIRES ARPT BE CHARTED.
Contact
- WAYNE@GRABANOTHERGEAR.COM
Nearby airports
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Also nearby: MT52 Nine Mile (private) (10 NM) · 9S4 Mineral County (22 NM) · MT66 Parcel Six Ranch (private) (28 NM) · MT32 Ckye Field (private) (28 NM) · 32S Stevensville (29 NM)
About MT81
Petty Creek Mountain Ranch (MT81) is an airport in Alberton, MT, at 3,519 ft MSL. It has 1 runway, the longest 2,138 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for MT81, refreshed from the Aviation Weather Center and FAA NASR.
Does MT81 have a control tower?
No. Petty Creek Mountain Ranch is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at MT81?
Petty Creek Mountain Ranch has 1 runway; the longest is 2,138 ft. See the Runways section for headings, surface, and lighting.
Where is MT81?
Petty Creek Mountain Ranch is in Alberton, MT, at an elevation of 3,519 ft MSL. Coordinates: 46.9095, -114.4654.
More about MT81
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 MT81 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.