KMWH is the ICAO code for Grant County International Airport (IATA MWH), located in Moses Lake, WA.
Grant County International Airport is a public use airport located six miles (10 km) northwest of the central business district of Moses Lake in Grant County, Washington, United States. Formerly a military facility, the airport is owned by the Port of Moses Lake, and its 13,500-foot (4,110 m) runway is the 17th longest in the U.S.
Excerpted from Wikipedia, available under the Creative Commons Attribution-ShareAlike License.