U10 Preston

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. Wind calm — no directional preference.

certainty: — evidence: NONE no tower now

Wind calm · VFR · 26 min old · from KBMC (34.3 nm away)

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

22 26% 3557 ft · 1 kt TAIL, 1 kt x-right

4 26% 3557 ft · 1 kt head, 1 kt x-left

17 24% 2375 ft · 1 kt TAIL, 0 kt x-left

35 24% 2375 ft · 1 kt head, 0 kt x-right

Why — evidence behind this answer

Runway 22

PRIOR runway length 3557 ft +0.04

Runway 4

PRIOR runway length 3557 ft +0.04

Runway 17

PRIOR runway length 2375 ft -0.04

Runway 35

PRIOR runway length 2375 ft -0.04

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	26 min	Nearest station KBMC (34.3 nm away)
ADSB	UNAVAILABLE		No ADS-B track history here yet
NOTAM	OK
CIFP	NOT_CONFIGURED		Instrument procedures: phase 4

Recent operations

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

Was this right?

U10 field & runways

Preston, Preston, Idaho. Field elevation 4728 ft. Non-towered (NON-ATCT). Magnetic variation 15.0°E on record, 10.9°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 0.09°/year west — about 1° every 11 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.
Runway	True	Magnetic	Number	Length	Surface	Pattern
17	178.6°	167.7°	matches	2,375 ft	GRVL-DIRT	left
22	228.1°	217.2°	matches	3,557 ft	ASPH	left
35	358.6°	347.7°	matches	2,375 ft	GRVL-DIRT	left
4	48.1°	37.2°	matches	3,557 ft	ASPH	left

Generated 08:41:11Z · auto-refreshes · JSON

U10 ☆ Preston