Are both Waterloo Regional Airport and Provincetown Municipal Airport located on land leased from the U.S. National Park Service 
Waterloo Regional Airport: Waterloo Regional Airport (IATA: ALO, ICAO: KALO, FAA LID: ALO) , also known as Livingston Betsworth Field, is a city owned public use airport located four miles (6 km) northwest of the central business district of Waterloo, a city in Black Hawk County, Iowa, United States.
i don't know