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S85
Local
S85
BIG SKY FLD
Public
PUB
1 miles NE of CULBERTSON, MT, US
View on
Map
Status
Operational
Coordinates
48° 09' 13"N
104° 30' 15"W
Elevation
1953' MSL
Pattern Alt
2953' MSL
Mag Variation
8°E
Declination
13°E
Fuel
100LL
FSS
GREAT FALLS (GTF)
Sectional
BILLINGS
ARTCC
SALT LAKE CITY (ZLC)
Data Effective
5/14/26-6/11/26
KPO1 (26nm)
VFR
4:55 PM MDT
RAW
Broken 8,500'
Viz
10sm
Temp
72°F
Dew
48°F
Pres
29.98"Hg
Wind
240° 12kts
Gusts 18kts
RMK
AO2 TSNO
METAR KPO1 032255Z AUTO 24012G18KT 10SM BKN085 22/09 A2998 RMK AO2 TSNO
Services
Frequencies & Documents
Freqs & Docs
TAF
NOTAM
Operations
Runways
Remarks
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S85 FBOs
No FBOs (Fixed Base Operators) are listed for this airport.
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Your Information
Business
x
Weather and Advisory
AWOS-3
120.0
(406) 787-5819
Common
CTAF
122.8
ACTVT MIRL RY 08/26 & PAPI RY 26 - CTAF.
UNICOM
122.8
FAA A/FD Pages
FAA A/FD Page
Terminal Area Forecast
KSDY (30nm)
RAW
Reported
Wed, 6/3 11:20 AM MDT
Valid
Wed, 6/3 12:00 PM MDT - Thu, 6/4 12:00 PM MDT
MVFR
Temporary
12:00 PM MDT - 3:00 PM MDT
Light Showers and Rain
Broken 2,000'
Viz
6sm
Wind
Calm
MVFR
12:00 PM MDT - 3:00 PM MDT
Broken 2,700'
Viz
6sm
Wind
230° 12kts
VFR
3:00 PM MDT - 9:00 PM MDT
Few 7,000'
Viz
6sm
Wind
260° 16kts
VFR
9:00 PM MDT - 12:00 PM MDT
Few 5,000'
Viz
6sm
Wind
VRB° 6kts
TAF KSDY 031720Z 0318/0418 23012KT P6SM BKN027
TEMPO 0318/0321 6SM -SHRA BKN020
FM032100 26016KT P6SM FEW070
FM040300 VRB06KT P6SM FEW050
S85
Effective
Expires
Category
NOTAM
Domestic
6/3/26
0509Z
6/18/26
0409Z
!GTF 06/017 S85 OBST TOWER LGT (ASR 1292699) 481225.70N1043146.90W (3.4NM NNW S85) 2710.6FT (319.9FT AGL) U/S 2606030509-2606180409
ATC Tower
No
Attendance
UNATNDD
ON CALL ALL HOURS 406-787-6680/0660.
Owner
ROOSEVELT COUNTY & CITY
210 BROADWAY
CULBERTSON, MT 59218
Phone: 406-787-5271
Manager
ROBERT JASPER
BOX 351
CULBERTSON, MT 59218
Phone: 406-787-5271
FSS
GREAT FALLS FSS (GTF)
Toll Free: 1-800-WX-BRIEF
NOTAM
GTF
Light Schedule
--
Lights
ACTVT MIRL RY 08/26 & PAPI RY 26 - CTAF.
Beacon
N/A
Wind Indicator
Yes - Lighted
Segmented Cir.
Yes
Landing Fee
No
Parking
Tie-Down
Int'l Operations
NOT a Landing Rights Airport
NOT an Airport of Entry
Airframe Repair
None
Pwrplant Repair
None
Bottled Oxygen
None
Bulk Oxygen
None
Other Services
Crop Dusting
Air Ambulance
Annual Surveying
Runway 08/26
Dimensions
3800 ft. x 60 ft.
Surface Type
ASPH
Surface Cond
Good
Treatment
NONE
Rwy Edge Lgts
MED
Pavement Class
Single Wheel
12,000lbs
Double Wheel
--
Double Tandem
--
Dual Dbl Tand
--
Runway 08
Runway 26
True Heading
90°
270°
Traffic Pattern
Left
Left
Markings
BSC
BSC
Markings Condition
FAIR
FAIR
Latitude
48° 09' 13"N
48° 09' 13"N
Longitude
104° 30' 43"W
104° 29' 47"W
Elevation
1,953'
1,934'
Threshold Crossing Height
--
27 ft. AGL
Visual Glide Path Angle
--
3°
Visual Slope Indicator
--
P2L
Approach Lights
Centerline Lights
Runway End Identifier Lights
A110-1
FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
A110-2
2,876 FT TWRS 3.5 MIS NW.
A17-M2
ON CALL ALL HOURS 406-787-6680/0660.
A70-100LL
SELF SERVICE CREDIT CARD 24/7
A81-APT
ACTVT MIRL RY 08/26 & PAPI RY 26 - CTAF.
BIG SKY FLD (IATA: S85) is a public airport located in CULBERTSON, MT, US.
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