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BIG SKY FLD - Airport Diagram
LiveATC.net: Live Air Traffic - From Their Headsets to You

S85
Local S85
BIG SKY FLD
PublicPUB

1 miles NE of CULBERTSON, MT, US
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LiveATC.net: Live Air Traffic - From Their Headsets to You
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  
Broken 8,500'
10sm
72°F
48°F
29.98"Hg
240° 12kts
Gusts 18kts
AO2 TSNO
METAR KPO1 032255Z AUTO 24012G18KT 10SM BKN085 22/09 A2998 RMK AO2 TSNO
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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

Terminal Area Forecast

KSDY (30nm)
Wed, 6/3 11:20 AM MDT
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'
6sm
Calm
MVFR
12:00 PM MDT - 3:00 PM MDT
Broken 2,700'
6sm
230° 12kts
VFR
3:00 PM MDT - 9:00 PM MDT
Few 7,000'
6sm
260° 16kts
VFR
9:00 PM MDT - 12:00 PM MDT
Few 5,000'
6sm
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
EffectiveExpiresCategoryNOTAM
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
No
UNATNDD
ON CALL ALL HOURS 406-787-6680/0660.
ROOSEVELT COUNTY & CITY
210 BROADWAY
CULBERTSON, MT 59218
Phone: 406-787-5271
ROBERT JASPER
BOX 351
CULBERTSON, MT 59218
Phone: 406-787-5271
GREAT FALLS FSS (GTF)
Toll Free: 1-800-WX-BRIEF
GTF
--
ACTVT MIRL RY 08/26 & PAPI RY 26 - CTAF.
N/A
Yes - Lighted
Yes
No
Tie-Down
NOT a Landing Rights Airport
NOT an Airport of Entry
None
None
None
None
Crop Dusting
Air Ambulance
Annual Surveying

Runway 08/26

3800 ft. x 60 ft.
ASPH  
Good 
NONE 
MED 
 
12,000lbs 
-- 
-- 
-- 
  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
A110-1FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
A110-22,876 FT TWRS 3.5 MIS NW.
A17-M2ON CALL ALL HOURS 406-787-6680/0660.
A70-100LLSELF SERVICE CREDIT CARD 24/7
A81-APTACTVT MIRL RY 08/26 & PAPI RY 26 - CTAF.
BIG SKY FLD (IATA: S85) is a public airport located in CULBERTSON, MT, US.