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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
KPO1 (26nm) VFR
7:55 AM MST  
Clear
10sm
39°F
32°F
29.61"Hg
260° 19kts
Gusts 25kts
AO2 TSNO
METAR KPO1 161455Z AUTO 26019G25KT 10SM CLR 04/00 A2961 RMK AO2 TSNO
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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)
Tue, 12/16 4:21 AM MST
Tue, 12/16 5:00 AM MST - Wed, 12/17 5:00 AM MST
VFR
5:00 AM MST - 6:00 AM MST
Scattered 3,500'
6sm
240° 15kts
Gusts 25kts
VFR
6:00 AM MST - 8:00 AM MST
Few 11,000'
6sm
260° 21kts
Gusts 37kts
VFR
8:00 AM MST - 10:00 AM MST
Few 10,000'
6sm
270° 22kts
Gusts 37kts
VFR
10:00 AM MST - 4:00 PM MST
Few 10,000'
6sm
280° 20kts
Gusts 34kts
VFR
4:00 PM MST - 2:00 AM MST
Few 14,000'
6sm
250° 9kts
VFR
2:00 AM MST - 5:00 AM MST
Scattered 4,000'
6sm
210° 10kts
Gusts 19kts
TAF KSDY 161121Z 1612/1712 24015G25KT P6SM SCT035 WS020/27075KT
   FM161300 26021G37KT P6SM FEW110 WS020/28070KT
   FM161500 27022G37KT P6SM FEW100 WS020/28055KT
   FM161700 28020G34KT P6SM FEW100
   FM162300 25009KT P6SM FEW140
   FM170900 21010G19KT P6SM SCT040 WS020/23045KT
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.