Airport information
- ICAO / IATA
- KBYG / BYG
- Coordinates
- 44.3811, -106.7220
- Elevation
- 4,968 ft MSL
- Magnetic variation
- 12E
- Sectional chart
- CHEYENNE
- Airport use
- Public
- Control tower
- No
- Weather station
- ASOS · 135.425 · ☎ 307-684-2558
- ARTCC
- SALT LAKE CITY (ZLC)
- Flight service (FSS)
- CASPER
- NOTAM facility
- BYG
- Attendance
- MON-FRI 0800-1700; SAT 0800-1200
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- lighted
- Activated
- 1941/04
- Distance from city
- 3 NW
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:46 AM | 10:46Z |
| Sunrise | 05:22 AM | 11:22Z |
| Sunset | 08:55 PM | 02:55Z |
| Evening civil twilight Loggable night begins | 09:32 PM | 03:32Z |
Plan a flight from KBYG
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- Usually keyed on CTAF 122.8 — confirm the click sequence in the Chart Supplement ↗
Runway lighting aids — 13: 4-light PAPI (left) · 31: 4-light PAPI (left).
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy 13 · 126°
- Pattern
- left (turns left)
- TPA
- 6,000 ft MSL (≈1,000 AGL)
- CTAF
- 122.8
Enter the left downwind for Rwy 13 at 6,000 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 13/31
6,143 ft × 75 ft · Asphalt (Good)- Heading
- 126° mag · 138° true
- Markings
- nonprecision
- VGSI
- 4-light PAPI (left) (3°)
- Traffic pattern
- Left
- Heading
- 306° mag · 318° true
- Markings
- nonprecision
- VGSI
- 4-light PAPI (left) (3°)
- Traffic pattern
- Left
- End lights
- REIL
| Runway | Length | Your margin |
|---|---|---|
| 13/31 | 6,143 ft |
Communication frequencies
| Service | Frequency | Notes |
|---|---|---|
| CTAF | 122.8 | |
| UNICOM | 122.8 | |
| BYG ASOS | 135.425 | |
| CRAZY WOMAN RCO | 122.2 | COMMUNICATIONS PRVDD BY CASPER RADIO ON FREQ 122.2 (CRAZY WOMAN RCO). |
| SHERIDAN RCAG | 127.75 | APCH/DEP CTL SVC PRVDD BY SALT LAKE ARTCC (ZLC) ON 127.75/351.9 (SHERIDAN RCAG). |
| SHERIDAN RCAG | 351.9 | APCH/DEP CTL SVC PRVDD BY SALT LAKE ARTCC (ZLC) ON 127.75/351.9 (SHERIDAN RCAG). |
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| CZI · Crazy Woman | VOR-DME | 117.30 | r319° / 26 NM |
| SHR · Sheridan | VORTAC | 115.30 | r139° / 31.3 NM |
Procedures at a glance
Approaches2
Minimums & Hot Spots
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Fuel available
- 100LL, Jet A
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- MAJOR
- Powerplant service
- MAJOR
- Parking
- tiedowns, hangars
Ownership & management
Remarks FAA
- TERRAIN DROPS OFF BOTH SIDES OF RY 13/31.
- DEER ON AND INVOF ARPT.
- RWY 31 +250' DROP 170'L FIRST 417'
- FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
- ACTVT MIRL RY 13/31 & PAPI RYS 13 & 31 AND REIL RY 31 - 122.8.
- PILOT SUPD TIE DOWN ROPES RQRD.
- FOR SVC AFTER HRS CALL 307-217-2060 OR 210-287-1548.
- AVBL H24 HR VIA SELF SVC CREDIT CARD.
- FOR JET A AFT HRS PHONE 307-217-2060 OR 210-287-1548.
Nearby airports
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open KBYG in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
About KBYG
Johnson County Airport (BYG · KBYG) is an airport in Buffalo, WY, at 4,968 ft MSL. It has 1 runway, the longest 6,143 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for KBYG, refreshed from the Aviation Weather Center and FAA NASR.
Does KBYG have a control tower?
No. Johnson County Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at KBYG?
Johnson County Airport has 1 runway; the longest is 6,143 ft. See the Runways tab for headings, surface, and lighting.
Where is KBYG?
Johnson County Airport is in Buffalo, WY, at an elevation of 4,968 ft MSL. Coordinates: 44.3811, -106.7220.
Fly out of KBYG often?
Save KBYG as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.