Ottertail Lake Airport Private
MT36 · Three Forks, MT · Non-towered · Print kneeboard
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Weather
METAR observed
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TAF forecast
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Sun & FAA night2026-08-03 · night begins 09:27 PM
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:38 AM | 11:38Z |
| Sunrise | 06:12 AM | 12:12Z |
| Sunset | 08:53 PM | 02:53Z |
| Evening civil twilight Loggable night begins | 09:27 PM | 03:27Z |
Plan a flight from MT36
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Advisories
NOTAMs
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Pilot reports
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Airspace hazards
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Runways
RWY 8LEFT traffic
- Heading
- 080° true
- Dimensions
- 1,852 ft
- TPA
- 5,200 ft MSL (≈1,000 AGL) · standard
- Surface
- Turf/Dirt
Enter the left downwind (heading 260°) on the 45° at 5,200 ft MSL (≈1,000 AGL).
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: schematic (headings + lengths)
Headings shown are true (magnetic variation unavailable).
| Runway | Length | Your margin |
|---|---|---|
| 8/26 | 1,852 ft |
Prefer one flat page? Full runway details for MT36 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the MT36 kneeboard →
Comms & NavAids
Nearby navigation aids
HIA 113.70 · BZN 112.40
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| HIA · Whitehall | VOR/DME | 113.70 · 84X | High | r079° / 20 NM |
| BZN · Bozeman | VOR/DME | 112.40 · 71X | High | r258° / 22.7 NM |
Charts & procedures
No published instrument procedures or Chart Supplement for MT36 — open it on the VFR sectional →
Airport info
Airport information
- FAA LID
- MT36
- Coordinates
- 45.8189, -111.6959
- Elevation
- 4,155 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
- 2020/01
- Distance from city
- 8 SW
Ownership & management 2 contacts
Remarks FAA · 1 notes
General
- OWNER DESIRES CHARTING.
Nearby airports
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Also nearby: 9S5 Three Forks Airport (6 NM) · MT42 Hasskamp STOLport (9 NM) · 2MT8 South Boulder Airport (private) (10 NM) · MT41 Jefco Skypark Airport (private) (18 NM) · MT34 Ponderosa Airport (private) (21 NM)
About MT36
Ottertail Lake Airport (MT36) is an airport in Three Forks, MT, at 4,155 ft MSL. It has 1 runway, the longest 1,852 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for MT36, refreshed from the Aviation Weather Center and FAA NASR.
Does MT36 have a control tower?
No. Ottertail Lake Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at MT36?
Ottertail Lake Airport has 1 runway; the longest is 1,852 ft. See the Runways section for headings, surface, and lighting.
Where is MT36?
Ottertail Lake Airport is in Three Forks, MT, at an elevation of 4,155 ft MSL. Coordinates: 45.8189, -111.6959.
Fly out of MT36 often?
Save MT36 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 MT36 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.