Mountain Top Airport Private
4PS4 · Thompson, PA · 2,114 ft elevation · var 11W · Non-towered
Airport information
- FAA LID
- 4PS4
- Coordinates
- 41.8152, -75.5342
- Elevation
- 2,114 ft MSL
- Magnetic variation
- 11W
- Sectional chart
- NEW YORK
- Airport use
- Private
- Control tower
- No
- ARTCC
- NEW YORK (ZNY)
- Flight service (FSS)
- WILLIAMSPORT
- Attendance
- UNATTENDED
- Segmented circle
- No
- Activated
- 1987/05
- Distance from city
- 3 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 | 04:53 AM | 08:53Z |
| Sunrise | 05:27 AM | 09:27Z |
| Sunset | 08:41 PM | 00:41Z |
| Evening civil twilight Loggable night begins | 09:15 PM | 01:15Z |
Plan a flight from 4PS4
Traffic pattern
- Landing
- Rwy 06 · 051°
- Pattern
- left (turns left)
- TPA
- 3,100 ft MSL (≈1,000 AGL)
Enter the left downwind for Rwy 06 at 3,100 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 06/24
2,500 ft × 100 ft · Turf (Fair)- Heading
- 051° mag · 40° true
- Traffic pattern
- Left
- Heading
- 231° mag · 220° true
- Traffic pattern
- Left
| Runway | Length | Your margin |
|---|---|---|
| 06/24 | 2,500 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| HNK · Hancock | VOR-DME | 116.80 | r224° / 17.8 NM |
| LHY · Lake Henry | VORTAC | 110.80 | r004° / 20.5 NM |
| LVZ · Wilkes-Barre | VORTAC | 111.60 | r022° / 33.3 NM |
| DNY · De Lancey | VOR-DME | 112.10 | r241° / 33.7 NM |
| CFB · Binghamton | VORTAC | 112.20 | r137° / 33.8 NM |
VFR sectional
No published instrument procedures or Chart Supplement for 4PS4. VFR sectional link above.
Ownership & management
Remarks FAA
- FOR CD CTC NEW YORK ARTCC AT 631-468-1425.
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 4PS4 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 4PS4
Mountain Top Airport (4PS4) is an airport in Thompson, PA, at 2,114 ft MSL. It has 1 runway, the longest 2,500 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 4PS4, refreshed from the Aviation Weather Center and FAA NASR.
Does 4PS4 have a control tower?
No. Mountain Top Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 4PS4?
Mountain Top Airport has 1 runway; the longest is 2,500 ft. See the Runways tab for headings, surface, and lighting.
Where is 4PS4?
Mountain Top Airport is in Thompson, PA, at an elevation of 2,114 ft MSL. Coordinates: 41.8152, -75.5342.
Fly out of 4PS4 often?
Save 4PS4 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.