3U7

VFR

BENCHMARK

AUGUSTA · MONTANA

Elev
5,434'
Longest RWY
6,000'12/30
Tower
None
Status
Uncontrolled
Now--Z· METAR00:53Z
Satellite top-down sketch of 3U7 BENCHMARK showing runway layout — runways 12/30
Runways rendered from FAA survey · not for navExpand →
Before you fly into 3U7
Conditions
VFR
Good for visual flying
Airport
Non-towered
Self-announce on CTAF
Pattern alt
6,434'
MSL · field 5,434' + 1,000 AGL
Favored RWY
RWY 30
H/W +6 · X/W 8 kt R

METAR & TAF 3U7

3U7 does not publish a METAR.

Showing the nearest reporting station: KMSO (MISSOULA MONTANA) · 60.2 NM away. Conditions at 3U7 may differ.

METAR · KMSO

Observed 00:53Z

KMSO 240053Z 01010KT 10SM FEW110 25/06 A3010 RMK AO2 SLP178 T02500061 $
Wind
010° @ 10 kt
Visibility
10 SM
Temp / Dew
25°C / 6°C
Altimeter
30.10 inHg
Clouds
FEW
Density alt
7,715 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
19 NM W
VFR sectional
GREAT FALLS
ARTCC
ZLC · SALT LAKE CITY
NOTAM facility
GTF (NOTAM-D)

Airport manager

Name
BJORN TROBERG
Address
HELENA & LEWIS & CLARK NAT FORESTS, 2880 SKYWAY DRIVE, HELENA MT 59602

Flight service · Hours

FSS GTF
GREAT FALLS1-800-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
010° · 10 kt
RWY 30
302°M
Head/Tail
+6 kt
Crosswind
8 kt R

Pattern entry · RWY 30

LEFT TRAFFIC
CrosswindCrosswindDownwindDownwindBaseBaseFinalFinal45° entry45° entryRWY 30 · 302° · LEFT TRAFFICPattern 6,434 ft MSL
RunwayHeading (°M)LengthSurfaceTraffic
12/30Favored122° / 302°6,000 ftASPHStandard L

Runway end performance

EndTORATODAASDALDAVGSIApproach lightsObstruction
1239', trees, 372' from thr, 0' R of cntrln, slope 4
3041', trees, 461' from thr, 0' R of cntrln, slope 6

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 satellite imagery. Not for navigation.

Top-down satellite sketch of 3U7 BENCHMARK in AUGUSTA, MONTANA, showing runways 12/30 drawn to scale over Esri World Imagery

Approaches & charts

Chart Supplement
3U7 · 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

Ramp & ground

Transient storage
  • Tie-down
Landing fee
No fee published
Customs
Not available
Wind indicator
Yes
Segmented circle
Yes

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

  • SNOW REMOVAL NA.
  • FONE NA; CABIN 1 MI NW.
  • SVCS NA.
  • FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
  • MTS PARL E & W; IN TRSN SFC.

Runway surface & condition

  • 12/30PSBL MOD-SVR CROSSWIND & TURB.

Approach & departure obstructions

  • 12RISES UPHILL 120 FT; RISING TRRN BYD.
  • 30RCMDD DEP COND PMTG.
  • 12+58 FT TREES ON CNTRLN.
  • 30+250 FT TREES ON CNTRLN.
  • 1233:1 TO THR. +65 FT TREES 0-150 FT R 2150 FT FM RWY END.

Other notes

  • WI LEWIS & CLARK NATIONAL FOREST.
  • 3 WDI; BOTH ENDS & MIDPT.
  • 12/30LRG CRACKS & WEEDS FULL LEN.

VFR map & nearby airports

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

Key facts · 3U7

Answer card
ICAO
3U7
Name
BENCHMARK
Location
AUGUSTA, MONTANA
Elevation
5,434 ft MSL
Traffic pattern altitude
6,434 ft MSL (1,000 AGL)
Control tower
Non-towered (use CTAF)
Total runways
1
Longest runway
12/30 · 6,000 ft
Published ILS approaches
0
Published frequencies
1
Magnetic variation
18°
Current flight rules
VFR
Current wind
010° at 10 kt
Favored runway now
RWY 30

Benchmark Airport sits near Augusta, Montana. The field elevation is 5,434 ft MSL. It has one runway, 12/30, at 6,000 ft. There is no control tower. CTAF is 122.9. No ILS approaches are published here.

Pattern altitude is not published. Use the standard 1,000 ft AGL pattern unless the current Chart Supplement says otherwise. That puts the light piston pattern at about 6,434 ft MSL. The airport sits in Lewis and Clark National Forest. Mountains lie parallel east and west. The remarks also call out rising terrain beyond runway 12. Runway 12 has a 120 ft uphill rise. The runway also has large cracks and weeds along its full length. Snow removal is not available.

There are no on-field FBOs listed. Plan on self-briefing the airport operator or the FBO directly by phone if you need local services. The published remarks also note trees near both runway ends. There are 58 ft trees on the runway centerline at runway 12. There are 250 ft trees on the runway centerline at runway 30. Expect crosswind and turbulence issues in the area. Clearance delivery is handled through Salt Lake ARTCC at 801-320-2568. For a first visit, treat this as a high-elevation mountain field with terrain, wind and runway condition concerns all in play.

Frequently asked questions

What is the pattern altitude at 3U7 Benchmark Airport?
Pattern altitude is not published. Use the standard 1,000 ft AGL pattern for light piston aircraft unless the current Chart Supplement says otherwise. That is about 6,434 ft MSL.
Does Benchmark Airport have any ILS approaches?
No ILS approaches are published for 3U7. Check the current Chart Supplement for the latest approach list before you go.
Is 3U7 towered?
No. Benchmark Airport has no control tower. CTAF is 122.9.
What is the longest runway at Benchmark Airport?
The airport has one runway. Runway 12/30 is 6,000 ft long and is the longest runway on the field.
What runway condition issues are published for 3U7?
The remarks say large cracks and weeds are present along the full length of runway 12/30. Snow removal is not available, so check field conditions before arrival.
Are there terrain or obstacle concerns at Benchmark Airport?
Yes. The remarks call out mountains parallel east and west, rising terrain beyond runway 12, trees near both runway ends, plus 58 ft trees on the centerline at runway 12. There are also 250 ft trees on the centerline at runway 30.
Which FBOs are on the field at 3U7?
No on-field FBOs are listed. Contact the airport operator directly before arrival, or call the field on CTAF for current FBO availability.
How do I get clearance for departure from Benchmark Airport?
The published remarks say to contact Salt Lake ARTCC at 801-320-2568 for clearance delivery. Verify current procedures with the Chart Supplement before departure.

Get PilotGPT

Fly into 3U7 with confidence

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

Download · 7-day free trial