3U7 Benchmark Airport Augusta MT

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 +5 · X/W 5 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 05:53Z

KMSO 060553Z 01007KT 10SM CLR 16/02 A2981 RMK AO2 SLP081 T01560022 10233 20150 51012

Wind: 010° @ 7 kt
Visibility: 10 SM
Temp / Dew: 16°C / 2°C
Altimeter: 29.81 inHg
Clouds: CLR
Density alt: 6,995 ft
Ceiling: Unlimited
Rules: VFR

3U7 does not issue a TAF.

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

Forecast · TAF

Valid 07 00:00Z–08 00:00Z

TAF KMSO 062332Z 0700/0724 31019G26KT P6SM SKC FM070200 31007KT P6SM BKN080 FM071100 30005KT 6SM -RA OVC025 FM071400 VRB03KT 4SM -RA BR OVC022 FM071800 26006KT P6SM BKN030

BASEVFR

07 00:00Z–07 02:00Z

Wind: 310° at 19 kt gusting 26 kt
Visibility: ≥ 6 SM
Sky: Clear
Weather: None forecast

00Z

03Z

06Z

09Z

12Z

15Z

18Z

21Z

00Z

NOW

How to read

The top lane is always the active baseline (BASE + FM). Secondary lanes stack temporary and probabilistic deviations in the order they appear in the TAF.

Tap any pill to see the decoded conditions for that period.

Change indicators

BASEBase

Initial conditions at the start of the forecast.

FMFrom

A new baseline that replaces the previous forecast completely, starting at the stated time.

BECMGBecoming

Conditions change gradually over the window shown. By the end, the new conditions apply.

TEMPOTemporary

Fluctuating conditions lasting less than an hour at a time within the window — not the dominant forecast.

PROB30/40Probability

30 or 40% chance of the conditions occurring within the period. Never combined with BECMG.

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
Phone: (406) 495-3832
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° · 7 kt

See full METAR & TAF

RWY 30

302°M

Head/Tail

+5 kt

Crosswind

5 kt R

Pattern entry · RWY 30

LEFT TRAFFIC

Runway	Heading (°M)	Length	Surface	Traffic
12/30Favored	122° / 302°	6,000 ft	ASPH	Standard L

Runway end performance

End	TORA	TODA	ASDA	LDA	VGSI	Approach lights	Obstruction
12	—	—	—	—	—	—	39', trees, 372' from thr, 0' R of cntrln, slope 4
30	—	—	—	—	—	—	41', 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

Chart Supplement

3U7 · CHART_SUPP

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.

Cheapest 100LLNearby

$6.95

KCII·Choteau Airport·35.3 nm

Cheapest Jet A

—

Not published

No on-field FBO prices. See nearby fuel options below.

Cheaper nearby (within 50 nm)

100LL$6.95atKCIIChoteau Airport35.3 nm

Airport notes

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

General notes

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

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 7 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.

3U7