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🇺🇸 Tri-County Regional Airport

Spring Green, US-WI, US 717 ft America/Chicago
Updated Jul 20, 2026

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Tri-County Regional Airport (IATA: LNR, ICAO: KLNR) serves Spring Green, US.

The Tri-County Regional Airport (KLNR/LNR) is a publicly owned general aviation airport located 2 miles north of Lone Rock, Wisconsin, on 225 acres. It is owned by Sauk, Iowa, and Richland Counties.

  • Location: E2525 County Road JJ, Spring Green, Wisconsin 53588.
  • Runways: The airport has two asphalt runways:
  • Runway 09/27: 5,000 x 75 feet (1,524 x 23 meters).
  • Runway 18/36: 1,850 x 60 feet (564 x 18 meters).
  • Operations: The airport is open to the public and does not have a control tower. For the 12-month period ending September 26, 2022, it had 16,000 aircraft operations, primarily general aviation.
  • Historical Significance: The airport was activated in November 1943.

*Sources researched: skyvector.com, aopa.org, airnav.com, co.sauk.wi.us, en.wikipedia.org*

AirportRoutes · updated Jul 20, 2026

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Where is Tri-County Regional Airport located?

Tri-County Regional Airport is located in Spring Green, US, at an elevation of 717 ft. Its IATA code is LNR and ICAO code is KLNR.