Skip to content
Vincony — fast, managed web hosting for your next site
The Pilots Desk
Small airport

Ottertail Lake Airport

ICAO US-1274Local MT36🇺🇸 Three Forks
Coordinates
45.8189°N, 111.6959°W
Elevation
4,155 ft (1,266 m)
Type
Small airport
Country
🇺🇸 United States
Region
US-MT
Time zone
Denver(UTC-06:00)
Magnetic variation
11.4° E

Daylight today(Jul 17, 2026, local time)

Civil dawn
05:16
Sunrise
05:53
Sunset
21:14
Civil dusk
21:50

About 15h 21m of daylight. Civil twilight (dawn/dusk) approximates the FAA definition of night for logging and currency. Times are computed and approximate — verify with official sources.

About Ottertail Lake Airport

Ottertail Lake Airport is a small airport in Three Forks, United States. It sits at an elevation of 4,155 ft (1,266 m) and has 1 runway, the longest 1,852 ft / 564 m. It observes America/Denver local time. The nearest airport is Three Forks Airport (K9S5), about 6.4 nm to the ne.

Summary generated from this airport’s structured data — reference only.

Map

Runway centrelines, navaids and overlapping airspace. Tiles © OpenStreetMap contributors. Reference only — not for navigation.

Runways (1)

RunwayLengthWidthSurfaceLightingStatus
8 / 261,852 ft / 564 m30 ftTurf/dirtUnlitOpen

Nearby airports

Three Forks AirportK9S5
6.4 nm NE (56°)
Harrison AirportUS-4192
8.1 nm SSW (204°)
Hasskamp STOLportMT42
9.4 nm NE (54°)
South Boulder Airport2MT8
9.6 nm W (269°)
Jefco Skypark AirportMT41
18 nm WNW (282°)
Ponderosa AirportUS-8139
20.9 nm NE (48°)

Great-circle distance and true bearing from Ottertail Lake Airport.

Live tracking (FR24) Open in Maps
🇺🇸 More airports in United States📘 Flying in the United States: a pilot's guide

Frequently asked questions

Where is Ottertail Lake Airport located?

Ottertail Lake Airport is small airport located in Three Forks, United States, at an elevation of 4,155 ft (1,266 m).

How many runways does Ottertail Lake Airport have?

Ottertail Lake Airport has 1 runway, the longest being 1,852 ft / 564 m.

What time zone is Ottertail Lake Airport in?

Ottertail Lake Airport is in the America/Denver time zone (UTC-06:00).

What is the magnetic variation at Ottertail Lake Airport?

The magnetic variation (declination) at Ottertail Lake Airport is approximately 11.4° E, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.

What airports are near Ottertail Lake Airport?

The nearest airport to Ottertail Lake Airport is Three Forks Airport (K9S5), about 6.4 nm to the ne, followed by Harrison Airport and Hasskamp STOLport.

Is the information on this page suitable for flight planning?

No. Ottertail Lake Airport data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.