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

S85
BIG SKY FLD
PublicPUB

1 miles NE of CULBERTSON, MT
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LiveATC.net: Live Air Traffic - From Their Headsets to You
Operational
48° 09' 13"N 104° 30' 15"W
1953' MSL
2953' MSL
13E
100LL
GREAT FALLS (GTF)
BILLINGS
SALT LAKE CITY (ZLC)
11/27/25-12/25/25
KSDY (30nm) VFR
8:56 AM MST  
Clear
10sm
13°F
8°F
29.98"Hg
190° 12kts
AO2 SLP208 T11061133 FZRANO $
METAR KSDY 141556Z AUTO 19012KT 10SM CLR M11/M13 A2998 RMK AO2 SLP208 T11061133 FZRANO $
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122.8 122.8

AWOS-3

AWOS-3
406-787-5819
 120.0

FAA A/FD Pages

Airport Diagrams

  • No Documents

Airport Minimums

  • No Documents

Departure Procedures

  • No Documents

Hotspot

  • No Documents

Standard Term. Arrival

  • No Documents

Instrument Approach

  • No Documents

Terminal Area Forecast

KSDY (30nm)
Sun, 12/14 4:20 AM MST
Sun, 12/14 5:00 AM MST - Mon, 12/15 5:00 AM MST
VFR
5:00 AM MST - 2:00 PM MST
Scattered 10,000'
6sm
180° 12kts
VFR
2:00 PM MST - 5:00 AM MST
Few 10,000'
6sm
220° 13kts
TAF KSDY 141120Z 1412/1512 18012KT P6SM SCT100
   FM142100 22013KT P6SM FEW100 WS020/27035KT
S85
EffectiveExpiresCategoryNOTAM
Domestic
12/9/25
0536Z
12/24/25
0436Z
!GTF 12/137 S85 OBST TOWER LGT (ASR 1292699) 481225.70N1043146.90W (3.4NM NNW S85) 2710.6FT (319.9FT AGL) U/S 2512090536-2512240436
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  
Excellent 
NONE 
MED 
 
12,000lbs 
-- 
-- 
-- 
  Runway 08 Runway 26
True Heading 90°270°
Traffic Pattern Left Left
Markings BSC BSC
Markings Condition GOOD GOOD
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.
BIG SKY FLD (IATA: S85) is a public airport located in CULBERTSON, MT.