Grasmere (U91)

Airport information: Grasmere, ID, United States. Search for another airport below.

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Location and general information

FAA identifier: U91
FAA site number: 04204.3*A
City / state: Grasmere, ID
County: Owyhee
Reference point: 42°22'23.90" N
115°52'46.00" W
Elevation: 5,144 ft (estimated)
Magnetic variation: 16° E (1985)
Status: Operational
Ownership: Public, State of Idaho-Div. of Aeronautics
Use: Open to the public
Airport area: 35 acres
From downtown: 0 NM south
Sectional chart: Salt Lake City
Activated: 04/1956

Services and facilities

Control tower: No
Attendance: Unattended
Airframe / engine repair: None / none
ARTCC: Salt Lake City (ZLC)
Flight service: Boise (BOI)
1-800-WX-BRIEF
NOTAM facility: BOI
Wind indicator: Yes, unlighted
Segmented circle: Yes
Landing fee: No
Airport manager: Div. of Aeronautics
208-334-8775
Last FAA inspection: 03/19/2025

FAA remarks

No winter maintenance.
Runway 05/23 surface may be poor due to damage by livestock; ground vehicles and rodents.
No telephone available at airport.
For CD contact Salt Lake ARTCC at 801-320-2568.

Source: FAA Airport Data and Information Portal (ADIP), effective October 29, 2026. View this airport on the FAA site

Airport facts

FAA identifier: U91
Location: Grasmere, ID, United States
Elevation: 5,144 ft
Coordinates: 42.37331, -115.87944

Runways

Runway	Size	Surface
05 / 23	2,750 × 150 ft	Dirt, fair

Codes, elevation and runways: FAA airport data (NASR), effective 2026-10-29. Reference only, not for navigation.

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