Airport information
- FAA LID
- 6A4
- Coordinates
- 36.4178, -81.8251
- Elevation
- 2,240 ft MSL
- Magnetic variation
- 7W
- Sectional chart
- CINCINNATI
- Airport use
- Public
- Control tower
- No
- ARTCC
- ATLANTA (ZTL)
- Flight service (FSS)
- NASHVILLE
- NOTAM facility
- BNA
- Attendance
- ALL 0900-1800
- Segmented circle
- Yes
- Wind indicator
- lighted
- Activated
- 1971/09
- Distance from city
- 4 S
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (EDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:39 AM | 09:39Z |
| Sunrise | 06:10 AM | 10:10Z |
| Sunset | 08:48 PM | 00:48Z |
| Evening civil twilight Loggable night begins | 09:19 PM | 01:19Z |
Plan a flight from 6A4
Night operations
- Airport lighting
- SEE RMK
- Pilot-controlled lighting
- ACTVT PAPI RWY 07 & 25; MIRL RWY 07/25 - CTAF. on 122.7 — Chart Supplement ↗
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy 06 · 065°
- Pattern
- left (turns left)
- TPA
- 3,200 ft MSL (≈1,000 AGL)
- CTAF
- 122.7
Enter the left downwind for Rwy 06 at 3,200 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 06/24
4,498 ft × 75 ft · ASP- Heading
- 065° mag · 58° true
- Heading
- 245° mag · 238° true
| Runway | Length | Your margin |
|---|---|---|
| 06/24 | 4,498 ft |
Communication frequencies
| Service | Frequency | Notes |
|---|---|---|
| AWOS | 126.225 | AWOS 3 |
| UNIC | 122.7 | CTAF/UNICOM |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| HMV · Holston Mountain | VORTAC | 114.60 | r098° / 14.8 NM |
| GZG · Glade Spring | VOR-DME | 110.20 | r155° / 27.3 NM |
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Fuel available
- 100LL, Jet A (additive)
- Airframe service
- MAJOR
- Powerplant service
- MAJOR
- Parking
- tiedowns, hangars
- Other services
- Avionics, Glider, Instruction, Parachute ops, Rental
Ownership & management
Remarks FAA
- VFR OPERNS ONLY.
- MT TRRN & HIGH PEAKS ALL QUADS; TSNT NIGHT OPS NOT RCMDD.
- DEER & BIRDS INVOF ARPT.
- COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -9C.
- FOR CD CTC ATLANTA ARTCC AT 770-210-7692.
- ACTVT PAPI RWY 07 & 25; MIRL RWY 07/25 - CTAF.
- AFT HR & SVC - AMGR.
- DYNON ONLY.
- RWY 07 PAPI DOES NOT PRVD OBSTN CLNC BYD 1.4 NM FM THR. PAPI RWY 07 UNUSBL BYD 5 DEGS LEFT OF CNTRLN.
- PAPI RWY 25 DOES NOT PRVD OBSTN CLNC BYD 1.4 NM FM THR. RWY 25 PAPI UNUSBL BYD 8 DEGS LEFT OF CNTRLN.
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 6A4 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 6A4
Johnson County Airport (6A4) is an airport in Mountain City, TN, at 2,240 ft MSL. It has 1 runway, the longest 4,498 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 6A4, refreshed from the Aviation Weather Center and FAA NASR.
Does 6A4 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 6A4?
Johnson County Airport has 1 runway; the longest is 4,498 ft. See the Runways tab for headings, surface, and lighting.
Where is 6A4?
Johnson County Airport is in Mountain City, TN, at an elevation of 2,240 ft MSL. Coordinates: 36.4178, -81.8251.
Fly out of 6A4 often?
Save 6A4 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.