runwayinuse

MT36 Ottertail Lake

26
PROBABLE 60%

Runway 26 — wind slightly favors it, low confidence

Based mostly on wind; no traffic or ATIS to confirm. No D-ATIS feed here — a voice ATIS/AWOS may exist; check the frequency. No ADS-B traffic data available.

certainty: 60% evidence: NONE no tower now

N 26 8

Wind 210° true at 4 kt · VFR · 53 min old · from KEKS (32.6 nm away)

▶ Listen live — ATIS/CTAF on LiveATC opens LiveATC’s own player · verify the broadcast yourself

26 59% 1852 ft · 3 kt head, 3 kt x-left · right traffic
8 41% 1852 ft · 3 kt TAIL, 3 kt x-right · right traffic
Why — evidence behind this answer

Runway 26

Runway 8

Sources consulted

sourcestatus agenote
D_ATISUNAVAILABLE No D-ATIS at this field
METAROK 53 min Nearest station KEKS (32.6 nm away)
ADSBUNAVAILABLE No ADS-B track history here yet
NOTAMOK
CIFPNOT_CONFIGURED Instrument procedures: phase 4

Recent operations

No operations observed in the last hour. (No ADS-B track history here yet)

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MT36 field & runways

Ottertail Lake, Three Forks, Montana. Field elevation 4155 ft. Non-towered (NON-ATCT). Private use.

The FAA's variation of record is the number this field was surveyed against; the second is where north points now, from WMM2025. It is moving 0.097°/year west — about 1° every 10 years — which is why runway numbers eventually stop matching their pavement.

Runway data from the FAA NASR 01 Oct 2026 cycle. Where NASR locates both thresholds, the true heading is the bearing between them rather than NASR's whole-degree alignment. Magnetic is that heading against today's declination from WMM2025, not the field's variation of record — so it can differ from the chart by the gap between the two shown above. The number painted on the runway is the one ATC uses.
RunwayTrueMagnetic Number LengthSurfacePattern Notes
26 260.1° 248.7° runway 25 by the rule today · 11.3° past 1,852 ft TURF-DIRT right
8 80.1° 68.7° runway 7 by the rule today · 11.3° past 1,852 ft TURF-DIRT right

Generated 13:48:16Z · auto-refreshes · JSON