Stapleton International Airport Plaza (Denver's tallest at 714′). Due to Stapleton's location east of downtown, the Federal Aviation Administration imposed a building height restriction of 700'-715' (depending on where the building was). This allowed an unimpeded glide slope for runways (8L/26R) and (8R/26L). The height restriction was lifted in 1995, well after the city's skyscrapers had been erected. By the 1980s, plans were under way to replace Stapleton with a new airport. Stapleton was plagued with a number of problems, including: The Colorado General Assembly brokered a deal in 1985 to annex a plot of land in Adams County into the city of
International Peace Garden Airport International Peace Garden Airport International Peace Garden Airport is a public use airport in Rolette County, North Dakota, United States on the Canada–US border. The airport is owned by the North Dakota Aeronautics Commission and located 11 nautical miles (20 km) north of the central business district of Dunseith, North Dakota. It is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a "general aviation" facility. The airport is located just east of the International Peace Garden on the North Dakota/Manitoba border. It is an airport of entry to Canada and the United States