The United States Postal Service issued the 15-cent Mount McKinley commemorative July 28, 1972. It is one of the seven stamps in the National Parks Centennial Issue. The fifteen-cent rate paid for international mail — either airmail postcard or surface letter mail — dispatched beyond Canada and Mexico.
Named "Mount McKinley" in 1897 by gold miner William Dickey, the mountain is the tallest in North America, reaching a height of 20,320 feet. The National Park Service and Woodrow Wilson established Mount McKinley National Park in 1917, and the mountain is now within the Denali National Park and Preserve.
James Barkley designed the stamp, of which 54 million were issued.
Postal Bulleting (May 18, 1972).
"Denali National Park and Preserve." National Park Service. www.nps.gov/dena/
Kloetzel, James E. ed. 2009 Specialized Catalogue of United States Stamps and Covers. 87th ed. Sidney, Ohio: Scott Publishing Co. 2008.