Reference only — not for real-world navigation.
KGTG
Grantsburg Municipal Airport · Grantsburg
Key Facts
Essential technical summary for MSFS 2020/2024 and X-Plane.
ILS Approach StatusILS DATA NOT IN DATABASE
Field Elevation
927 ft / 283 m
Transition Altitude
18,000 ft
Primary Channel
CTAF 122.90 MHz (CTAF)
Live Conversion
inHg
hPa
Flight Planning
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Welcome to the technical flight briefing for Grantsburg Municipal Airport (KGTG), located in Grantsburg, 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 927 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
Grantsburg Municipal Airport
ICAO / IATA
KGTG / GTG
Municipality
Grantsburg
Country
Region
US-WI — Wisconsin
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
927 ft
Official Website
Wikipedia
Pilot Toolbox
External charts, live tracking and weather reports.
Runway 05 / 23
UNLIT
Runway Length: 3,315 ft / 1,010 m
Runway Width: 120 ft / 37 m
Surface Type: Grass
Heading: 55.9° / 235.9°
Runway Width: 120 ft / 37 m
Surface Type: Grass
Heading: 55.9° / 235.9°
RWY 05 (55.9°)
No ILS / Visual Only
RWY 23 (235.9°)
No ILS / Visual Only
Runway 12 / 30
LIGHTED
Runway Length: 3,000 ft / 914 m
Runway Width: 60 ft / 18 m
Surface Type: Asphalt
Heading: 120.8° / 300.8°
Runway Width: 60 ft / 18 m
Surface Type: Asphalt
Heading: 120.8° / 300.8°
RWY 12 (120.8°)
No ILS / Visual Only
RWY 30 (300.8°)
No ILS / Visual Only
CNTR MINNEAPOLIS CNTR
121.05 MHz
CTAF CTAF
122.90 MHz
RDO GREEN BAY RDO
122.10 MHz
Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: AIP 2026 Researched · Cycle: Jan 2026