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Grasmere Airport

U91 · Grasmere, ID · 5,134 ft elevation · var 16E · Towered

Airport information

FAA LID
U91
Coordinates
42.3733, -115.8795
Elevation
5,134 ft MSL
Magnetic variation
16E
Sectional chart
SALT LAKE CITY
Airport use
Public
Control tower
Yes
ARTCC
SALT LAKE CITY (ZLC)
Flight service (FSS)
BOISE
NOTAM facility
BOI
Attendance
UNATNDD
Segmented circle
Yes
Wind indicator
yes
Activated
1956/04
Distance from city
0 S

Weather

METAR observed

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TAF forecast

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Sun & FAA night 2026-06-20

EventLocal (MDT)UTC
Morning civil twilight
Loggable night ends
05:32 AM11:32Z
Sunrise06:06 AM12:06Z
Sunset09:24 PM03:24Z
Evening civil twilight
Loggable night begins
09:59 PM03:59Z
Loggable night (§1.1)
09:59 PM → 05:32 AM
Night currency (§61.57)
10:24 PM → 05:06 AM

Plan a flight from U91

Runway 05/23

2,750 ft × 150 ft · Dirt (Fair)
05
Heading
n/a
Traffic pattern
Left
23
Heading
n/a
Traffic pattern
Left

Nearby navigation aids

NavAidTypeFreqRadial / Dist magnetic
LIA · LiberatorVOR114.90r169° / 36.9 NM

Chart Supplement FAA A/FD

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Preview Chart Supplement Open the Chart Supplement PDF

Services

Bottled oxygen
NONE
Bulk oxygen
NONE
Airframe service
NONE
Powerplant service
NONE

Ownership & management

Owner
STATE OF IDAHO-DIV. OF AERONAUTICS
BOX 7129, BOISE, ID
208-334-8775
Manager
DIV. OF AERONAUTICS
BOX 7129, BOISE, ID
208-334-8775

Remarks FAA

  • ESTABD PRIOR TO 1959.
  • NO WINTER MAINTENANCE.
  • RY 05/23 SFC MAY BE POOR DUE TO DAMAGE BY LIVESTOCK; GROUND VEHICLES AND RODENTS.
  • NO TELEPHONE AVBL AT ARPT.
  • FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
  • TIEDOWN PADS HAVE NO CHAINS.
  • 05/23 EDGES & THRS MARKED WITH WHITE ROCKS.
  • RY 05, 4 FT FENCE AT 90 FT ON CNTRLN; 7 FT ROAD AT 150 FT ON CNTRLN. 65 FT MARKED POWERLINE AT 900 FT ON CNTRLN.

Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open U91 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator.