Baltimore, Maryland

KMTN Martin State

Martin State (KMTN) is a towered, public-use airport in Baltimore, Maryland, at 22.2 ft MSL. It has 2 runways: 15/33 (6,999 by 150 ft, asphalt), H1 (60 by 60 ft, concrete). CTAF 121.3.

FAA NASR data effective Oct 29, 2026. Not for navigation; verify with current FAA charts and the Chart Supplement.

Airport

At a glance

Identifiers: ICAO KMTN, FAA MTN
Location: Baltimore, Maryland (Baltimore County). 9 NM E of the city center
Elevation: 22.2 ft MSL
Position: 39.3257° N, 76.4138° W
Control tower: Yes (ATCT)
Sectional chart: Washington
Magnetic variation: 11° W (2000)
Fuel: 100LL, Jet A+
Ownership: Publicly owned, open to the public
Attendance: Daily 0600-2100

2 runways

Runways

Runway	Length × width	Surface	Edge lights
15/33	6,999 × 150 ft	Asphalt, excellent condition	High intensity
H1	60 × 60 ft	Concrete, fair condition	Not listed

Runway ends and traffic pattern

End	Pattern	Glide slope lights	Instrument	Displaced threshold	Landing distance
15	Left traffic	Pulsating VASI, left	LOC/DME	None listed	Not listed
33	Left traffic	Pulsating VASI, left	ILS/DME	None listed	Not listed
H1	Not stated	None listed	None listed	None listed	Not listed

VHF

Frequencies

ATIS: 124.925; "Martin". Hours 0600-2200. Atis Freq 124.925 Used To Tmt Awos Wx Data When Atct Closes.
CTAF: 121.3
UNICOM: 122.95
Tower: 121.3; "Martin". Hours 0600-2200
Ground: 121.8; "Martin". Hours 0600-2200
Approach / departure: 119.0; "Potomac"
Approach / departure: 119.7; "Potomac"

Weather station

AWOS-3PT MTN: No frequency listed

Within reach

Nearest public airports

Before you go

Brief KMTN in Ascent EFB.

Current weather, NOTAMs and the airport diagram for Martin State, in the app on iPhone and iPad.

Not for navigation. Verify with current FAA charts and the Chart Supplement before flight.

Source: FAA NASR 28-day subscription, cycle effective Oct 29, 2026. Airport data changes every 28 days and NOTAMs can override it at any time.