Reference only — not for real-world navigation.
KLDM
Mason County Airport · Ludington
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
646 ft / 197 m
Transition Altitude
18,000 ft
Primary Channel
AWOS 119.92 MHz (AWOS 3)
Live Conversion
inHg
hPa
Flight Planning
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Welcome to the technical flight briefing for Mason County Airport (KLDM), located in Ludington, United States. As a vital hub for Microsoft Flight Simulator 2024, MSFS 2020, and X-Plane pilots, this facility features 2 active runways with a maximum elevation of 646 ft. Please note that this field primarily supports VFR and visual approach procedures.Reference the data below for primary communication channels and detailed runway characteristics. Pilots should observe a Transition Altitude of 18,000 ft verified for this field for altimeter reset procedures.
Full Name
Mason County Airport
ICAO / IATA
KLDM / LDM
Municipality
Ludington
Country
Region
US-MI — Michigan
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
646 ft
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 08 / 26
UNLIT
Runway Length: 5,003 ft / 1,525 m
Runway Width: 75 ft / 23 m
Surface Type: ASPH-G
Heading: 71° / 251°
Runway Width: 75 ft / 23 m
Surface Type: ASPH-G
Heading: 71° / 251°
RWY 08 (71°)
No ILS / Visual Only
RWY 26 (251°)
No ILS / Visual Only
Runway 01 / 19
UNLIT
Runway Length: 3,503 ft / 1,068 m
Runway Width: 75 ft / 23 m
Surface Type: ASPH-G
Heading: 2° / 182°
Runway Width: 75 ft / 23 m
Surface Type: ASPH-G
Heading: 2° / 182°
RWY 01 (2°)
No ILS / Visual Only
RWY 19 (182°)
No ILS / Visual Only
AWOS AWOS 3
119.92 MHz
CNTR MINNEAPOLIS CNTR
120.85 MHz
RDO LANSING RDO
122.45 MHz
UNIC CTAF/UNICOM
123.00 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026