runwayinuse

KBYG Johnson County

?
UNKNOWN

Unknown — not enough evidence to call a runway

We don't know, and saying so beats guessing. No D-ATIS feed here — a voice ATIS/AWOS may exist; check the frequency. No ADS-B traffic data available. Weather observation is 769 minutes old — treat with caution.

certainty: — evidence: NONE no tower now

N 31 13

Wind 350° true at 8 kt · VFR · 769 min old

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

31 51% 6143 ft · 7 kt head, 4 kt x-right
13 49% 6143 ft · 7 kt TAIL, 4 kt x-left
Why — evidence behind this answer

Runway 31

Runway 13

Sources consulted

sourcestatus agenote
D_ATISUNAVAILABLE No D-ATIS at this field
METAROK 769 min
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)

Was this right?

KBYG field & runways

Johnson County, Buffalo, Wyoming. Field elevation 4970 ft. Non-towered (NON-ATCT). Magnetic variation 12.0°E on record, 8.9°E today.

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 0.085°/year west — about 1° every 12 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
13 138.2° 129.3° matches 6,143 ft ASPH left
31 318.1° 309.3° matches 6,143 ft ASPH left

Generated 08:41:31Z · auto-refreshes · JSON