25U

VFR

MEMALOOSE USFS

IMNAHA · OREGON

Elev
6,708'
Longest RWY
3,300'17/35
Tower
None
Status
Uncontrolled
Now--Z· METAR05:35Z
© Esri
Runways rendered from FAA survey · not for navExpand →
Before you fly into 25U
Conditions
VFR
Good for visual flying
Airport
Non-towered
Self-announce on CTAF
Pattern alt
7,708'
MSL · field 6,708' + 1,000 AGL
Favored RWY
RWY 17
H/W +4 · X/W 1 kt R

METAR & TAF 25U

25U does not publish a METAR.

Showing the nearest reporting station: KJSY (JOSEPH STATE) · 24.0 NM away. Conditions at 25U may differ.

METAR · KJSY

Observed 05:35Z

KJSY 280535Z AUTO 21004KT 10SM CLR 02/M03 A3002 RMK AO2 T00151029
Wind
210° @ 4 kt
Visibility
10 SM
Temp / Dew
2°C / -3°C
Altimeter
30.02 inHg
Clouds
CLR
Density alt
6,634 ft
Ceiling
Unlimited
Rules
VFR

Airport info & contacts

Manager on record, flight service, ARTCC, attendance schedule and pattern altitude — published by the FAA and refreshed every 28 days.

Location

From city
10 NM SE
VFR sectional
GREAT FALLS
ARTCC
ZSE · SEATTLE
NOTAM facility
MMV (NOTAM-D)

Airport manager

Name
BRANDON CULLEY-UNIT AVIATION OFFICE
Address
59973 DOWNS RD, LA GRANDE OR 97850

Flight service · Hours

FSS MMV
MC MINNVILLE1-800-WX-BRIEF
Attendance
  • Unattended

Frequencies

Tap any row to copy the frequency to your clipboard.

Advisory / CTAF

Runways & pattern

Full page

Runway & wind

tap a runway
210° · 4 kt
RWY 17
174°M
Head/Tail
+4 kt
Crosswind
1 kt R

Pattern entry · RWY 17

RIGHT TRAFFIC
CrosswindCrosswindDownwindDownwindBaseBaseFinalFinal45° entry45° entryRWY 17 · 174° · RIGHT TRAFFICPattern 7,708 ft MSL
RunwayHeading (°M)LengthSurfaceTraffic
17/35Favored174° / 354°3,300 ftDIRT17 R · 35 R

Runway end performance

EndTORATODAASDALDAVGSIApproach lightsObstruction
1715', trees, 50' from thr, 0' R of cntrln, slope 3
3510', tree, 378' from thr, 0' R of cntrln, slope 37

Declared distances in feet. TORA = takeoff run available, TODA = takeoff distance, ASDA = accelerate-stop, LDA = landing distance.

Airport sketch

Runways drawn to scale from FAA survey coordinates, rendered over live satellite imagery. Not for navigation.

© Esri

Approaches & charts

Chart Supplement
25U · CHART_SUPP
Can’t preview this PDF inline. Open it →

Services on the field

Fuel grades, oxygen, maintenance, ramp storage and lighting — as declared to the FAA by the airport operator.

Fuel & services

Fuel
Not available
Oxygen (bottled)
Not available
Oxygen (bulk)
Not available
Airframe repair
Not available
Power plant repair
Not available

Ramp & ground

Transient storage
  • Not published
Landing fee
No fee published
Wind indicator
Yes
Segmented circle
No

Fuel & FBOs

Cheapest 100LL and Jet A on the field and nearby. Always confirm with the FBO before taxi.

Airport notes

Surface conditions, obstructions, local procedures, lighting outages and other notes published with each FAA cycle.

General notes

  • For clearance delivery contact Seattle ARTCC at 253-351-3694.Show FAA
  • Closed winters.Show FAA
  • Runway 17 slopes up 2.5 percent to the south.Show FAA
  • Runway 35 expects downdrafts on short final due to sheer drop in terrain.Show FAA
  • Livestock and wildlife on and in vicinity of airport.Show FAA
  • No line of sight between runway ends.Show FAA
  • Early spring: damp soft spot on north end of runway; land long to south.Show FAA
  • Runway 35 has a 9 inch berm along the left shoulder for 500 feet.Show FAA

Approach & departure obstructions

  • 35The threshold is marked by white rocks across the runway end.Show FAA

Other notes

  • Established prior to 1959.Show FAA
  • 17/35Loose 3 inch to 6 inch rocks on runway; runway fair defined for gravel turf runway. The south 1000 feet is rough and overgrown with weeds.Show FAA

VFR map & nearby airports

VFR sectional. Tap any ICAO chip to open that airport.

Key facts · 25U

Answer card
ICAO
25U
Name
MEMALOOSE USFS
Location
IMNAHA, OREGON
Elevation
6,708 ft MSL
Traffic pattern altitude
7,708 ft MSL (1,000 AGL)
Control tower
Non-towered (use CTAF)
Total runways
1
Longest runway
17/35 · 3,300 ft
Published ILS approaches
0
Published frequencies
1
Magnetic variation
18°
Current flight rules
VFR
Current wind
210° at 4 kt
Favored runway now
RWY 17

MEMALOOSE USFS (25U) sits near Imnaha, Oregon. Field elevation is 6,708 ft MSL. The airport has one runway. Runway 17/35 is 3,300 ft long and surfaced with dirt. There is no control tower. CTAF is 122.9. No ILS approaches are published.

Pattern altitude is not published. Use standard 1,000 ft AGL for light piston operations unless the current FAA Chart Supplement says otherwise. At this elevation, performance planning matters. The field also has terrain issues that deserve attention on both ends. Runway 17 slopes up 2.5 percent to the south. Runway 35 can produce downdrafts on short final because of the drop in terrain. The runway ends are not in line of sight with each other.

Published remarks also call out loose rocks on the surface. The south 1,000 feet is rough and overgrown with weeds. Runway 35 has a berm along the left shoulder for about 500 feet. The threshold is marked by white rocks at the runway end. Livestock and wildlife have been reported on and near the airport. The field is closed in winter. No on-field FBOs are listed, so verify services with the airport operator or call the field directly before you go.

Frequently asked questions

What is the field elevation at 25U MEMALOOSE USFS?
Field elevation is 6,708 ft MSL. That makes density altitude planning important, especially on warm days.
What is the runway at MEMALOOSE USFS and how long is it?
The airport has one runway. Runway 17/35 is 3,300 ft long and dirt.
Is there an ILS at 25U?
No ILS approaches are published for 25U. Check the current FAA Chart Supplement for any other approach notes before you fly in.
What is the pattern altitude at MEMALOOSE USFS?
Pattern altitude is not published. Use standard 1,000 ft AGL for light piston operations unless the current FAA Chart Supplement says otherwise.
Is 25U towered?
No. 25U has no control tower. CTAF is 122.9.
What runway hazards should I expect at 25U?
Expect loose 3 inch to 6 inch rocks on the runway. The south 1,000 feet is rough and overgrown with weeds. Runway 35 also has a berm along the left shoulder for about 500 feet.
Does MEMALOOSE USFS close in winter?
Yes. The published remarks say the field is closed winters. Verify current conditions with the airport operator before planning a trip.
Are there any on-field FBOs at 25U?
No on-field FBOs are listed. Contact the airport operator directly before arrival, or call the field on CTAF for current service availability.

Get PilotGPT

Fly into 25U with confidence

Live ATC transcription, AI flight planning, POH search and georeferenced charts — offline-ready on iOS.

Download · 7-day free trial