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KMSN

MSN

Dane County Regional Truax Field · Madison

Key Facts

Technical summary and operational standards.

ILS Approach StatusILS FREQUENCIES VERIFIED ✅

Field Elevation

887 ft / 270 m

Transition Altitude

18,000 ft

Primary Channel

TWR 119.30 MHz (MADISON TWR)

Runway Summary

18/369,005 ftConcreteLIGHTED

03/217,200 ftConcreteLIGHTED

14/325,846 ftConcreteLIGHTED

Details Runways Frequencies Navaids Nearby

Mission Briefing & Tools

Direct calculators and pre-filled resources for this airport.

SkyVector FlightAware Live METAR Satellite

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Briefing for Dane County Regional Truax Field (KMSN), United States. This facility features 3 active runways with an elevation of 887 ft. Verified ILS frequencies are available for precision approaches.Maintain a Transition Altitude of 18,000 ft for altimeter reset.

Airport Details

Full geographical and organizational metadata.

Full Name

Dane County Regional Truax Field

ICAO / IATA

KMSN / MSN

Municipality

Madison

Country

Region

US-WI

GPS Coordinates

43.139900, -89.337502

Transition Altitude

18,000 ft

Official Website

—

Wikipedia

Runways & ILS Approach Data

Detailed dimensions and verified landing frequencies.

Runway 18 / 36

ILSLIGHTED

Crosswind 18 Crosswind 36 TOD VDP

Length: 9,005 ft / 2,745 m
Surface: Concrete
Heading: 181.9° / 1.9°

RWY 18

110.10 MHz

ID: DSZ | CRS: 185°

RWY 36

110.10 MHz

ID: MSN | CRS: 5°

Runway 03 / 21

ILSLIGHTED

Crosswind 03 Crosswind 21 TOD VDP

Length: 7,200 ft / 2,195 m
Surface: Concrete
Heading: 28.8° / 208.8°

RWY 03

No ILS

RWY 21

111.55 MHz

ID: DQJ | CRS: 214°

Runway 14 / 32

LIGHTED

Crosswind 14 Crosswind 32 TOD VDP

Length: 5,846 ft / 1,782 m
Surface: Concrete
Heading: 137° / 317°

RWY 14

No ILS

RWY 32

No ILS

Nearby Navaids

VOR, NDB, DME stations in the vicinity.

MS · NDB (Monah)400 kHz

0 ft · Associated: KMSN
43.062698, -89.345901

MSN · VORTAC (Madison)108,600 kHz

860 ft · Associated: KMSN
43.144798, -89.339699

Communication Frequencies

ATC and advisory channels.

APP MADISON APP

120.10 MHz

ATIS ATIS

124.65 MHz

CLD MADISON CLNC DEL

121.62 MHz

CTAF CTAF

119.30 MHz

DEP MADISON DEP

126.85 MHz

GND MADISON GND

121.90 MHz

MISC ARNG OPS

40.80 MHz

OPS ANG OPS

138.25 MHz

RDO GREEN BAY RDO

122.60 MHz

TWR MADISON TWR

119.30 MHz

UNIC UNICOM

122.95 MHz

Nearby Airports

Alternatives in the vicinity.

Chicago Rockford International Airport

Wittman Regional Airport

General Mitchell International Airport

Kenosha Regional Airport

Data Source: OurAirports · Technical Briefing Jan 2026
ILS Data Source: AIP / FAA NASR Cycle Verified