LACROSSE, Wis. — Gundersen Health has bought the Sparta ambulance service 27 miles away. Robert and Linda Hess had owned the company for 53 years. Terms of the deal were not announced. Gundersen, based in LaCrosse, already operates one of its two med-evac helicopters out of Sparta. The other helicopter is based in Decorah.

Gundersen’s reach. Gundersen’s Tri-State ground ambulance subsidiary has 15 vehicles plus arragements with other companies to service 22,000 square miles.