Catoctin Crosswind Airport Private

4MD7 · Thurmont, MD · 451 ft elevation · Non-towered

Overview Weather Runways Comms & NavAids Charts Services & info

Airport information

FAA LID: 4MD7
Coordinates: 39.6453, -77.3678
Elevation: 451 ft MSL
Sectional chart: WASHINGTON
Airport use: Private
Control tower: No
ARTCC: WASHINGTON (ZDC)
Flight service (FSS): LEESBURG
Attendance: UNATNDD
Segmented circle: No
Wind indicator: yes
Activated: 2007/10
Distance from city: 4 NE

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	05:09 AM	09:09Z
Sunrise	05:42 AM	09:42Z
Sunset	08:41 PM	00:41Z
Evening civil twilight Loggable night begins	09:13 PM	01:13Z

Loggable night (§1.1)

09:13 PM → 05:09 AM

Night currency (§61.57)

09:41 PM → 04:42 AM

Plan a flight from 4MD7

Destination (ICAO)

TAS (kt)Burn (gph)Reserve (hr)Wind from (°)Wind (kt)

Traffic pattern

Landing runway

LEFT traffic

Landing: Rwy 05
Pattern: left (turns left)
TPA: 1,500 ft MSL (≈1,000 AGL)

Enter the left downwind for Rwy 05 at 1,500 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).

Runway 05/23

1,600 ft × 100 ft · Turf

Heading: n/a
Traffic pattern: Left

Heading: 233° true
Traffic pattern: Left

Headings shown are true (magnetic variation unavailable).

Will it fit? Your aircraft's required runway length (from the POH) — checked against every runway here

ft · ≥1.5× comfortable, under 1.25× tight · saved across airports

Runway	Length	Your margin
05/23	1,600 ft

Nearby navigation aids

NavAid	Type	Freq	Radial / Dist magnetic
FDK · Frederick	VOR	109.00	r009° / 14 NM
EMI · Westminster	VORTAC	117.90	r305° / 20.1 NM
HGR · Hagerstown	VOR	109.80	r105° / 22.8 NM
MRB · Martinsburg	VORTAC	112.10	r062° / 27.2 NM
THS · St Thomas	VORTAC	115.00	r130° / 32 NM

VFR sectional

Open 4MD7 on the VFR sectional (SkyVector) ↗

No published instrument procedures or Chart Supplement for 4MD7. VFR sectional link above.

Ownership & management

Owner

MARK ALLEN

15102 MUD COLLEGE ROAD, THURMONT, MD

301-271-7161

Manager

MARK ALLEN

15102 MUD COLLEGE ROAD, THURMONT, MD

301-271-7161

Remarks FAA

PRVDD OPNS & PVT USE.
FOR CD CTC POTOMAC APCH AT 866-709-4993.

Nearby airports

MD12 · Bell AirportPrivate (4 NM)MD42 · Keymar AirparkPrivate (7 NM)W73 · Mid Atlantic Soaring Center Airport (7 NM)3PN2 · Karlindo AirportPrivate (7 NM)67MD · Willows LandingPrivate (8 NM)6MD3 · Harp AirportPrivate (9 NM)

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 4MD7 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 4MD7

Catoctin Crosswind Airport (4MD7) is an airport in Thurmont, MD, at 451 ft MSL. It has 1 runway, the longest 1,600 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 4MD7, refreshed from the Aviation Weather Center and FAA NASR.

Does 4MD7 have a control tower?

No. Catoctin Crosswind Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.

What is the longest runway at 4MD7?

Catoctin Crosswind Airport has 1 runway; the longest is 1,600 ft. See the Runways tab for headings, surface, and lighting.

Where is 4MD7?

Catoctin Crosswind Airport is in Thurmont, MD, at an elevation of 451 ft MSL. Coordinates: 39.6453, -77.3678.

Fly out of 4MD7 often?

Save 4MD7 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.

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