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KLNR

Tri-County Regional Airport · Spring Green

Key Facts

Essential technical summary for MSFS 2020/2024 and X-Plane.

ILS Approach StatusILS FREQUENCIES VERIFIED ✅
Field Elevation
717 ft / 219 m
Transition Altitude
18,000 ft
Primary Channel
ASOS 119.42 MHz (ASOS)
Live Conversion
inHg
hPa
Flight Planning
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Welcome to the technical flight briefing for Tri-County Regional Airport (KLNR), located in Spring Green, 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 717 ft. Instrument approaches (IFR) are supported with verified ILS frequencies and identifiers for precision landings.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.

Airport Details

Full geographical and organizational metadata.

Full Name
Tri-County Regional Airport
ICAO / IATA
KLNR / LNR
Municipality
Spring Green
Country
Region
US-WI — Wisconsin
GPS Coordinates
Transition Altitude
18,000 ft
Elevation
717 ft
Wikipedia

Pilot Toolbox

External charts, live tracking and weather reports.

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Runways & ILS Approach Data

Detailed dimensions and instrument landing frequencies.

Runway 09 / 27
ILS EQUIPPEDLIGHTED
Runway Length: 5,000 ft / 1,524 m
Runway Width: 75 ft / 23 m
Surface Type: Asphalt
Heading: 90° / 270°
RWY 09 (90°)
No ILS / Visual Only
RWY 27 (270°)
108.35 MHz
IDENT: LNR | CRS: 270°
Runway 18 / 36
LIGHTED
Runway Length: 1,988 ft / 606 m
Runway Width: 60 ft / 18 m
Surface Type: Asphalt
Heading: 179.6° / 359.6°
RWY 18 (179.6°)
No ILS / Visual Only
RWY 36 (359.6°)
No ILS / Visual Only

Communication Frequencies

Air traffic control and advisory channels.

A/D MADISON APP/DEP
135.45 MHz
ASOS ASOS
119.42 MHz
RDO GREEN BAY RDO
122.35 MHz
UNIC CTAF/UNICOM
123.00 MHz

Nearby Airports

Alternative airports in the vicinity (km & nm).

KMSNILS
Dane County Regional Truax Field
69 km / 37 nm
KVOKILS
Volk Field
81 km / 44 nm
KDBQILS
Dubuque Regional Airport
100 km / 54 nm
KLSEILS
La Crosse Regional Airport
114 km / 62 nm
KRFDILS
Chicago Rockford International Airport
143 km / 77 nm

Base Airport Data: OurAirports (Public Domain)
Instrument Approach Data: FAA NASR · Cycle: Jan 2026