Kalmbach Airport (ICAO: 43AK) is a privately owned general aviation airstrip located in Wasilla, Alaska, within the Matanuska-Susitna Borough. It serves as a personal or small-scale private facility rather than a commercial passenger airport. Wasilla is situated in the Mat-Su Valley north of Anchorage, a region where small private airstrips are common due to Alaska's vast wilderness and limited road infrastructure. Airports like Kalmbach play a supporting role in local aviation activity alongside larger facilities such as Wasilla Airport (PAWS). As a private-use facility, Kalmbach Airport does not offer scheduled commercial service, terminal buildings, or airline operations. It primarily supports light general aviation aircraft.