Beginning in 2010, the United States Mint will issue newly designed quarters featuring a national park or other site approximately every ten weeks--and this compact folder is the perfect place for collectors to store each new coin. Complete with historical information and details of the Congressional Act that initiated this special program, the folder will keep this commemorative series organized, accessible, and easy to show off. The noteworthy sites will come from all 50 states, as well as Washington, D.C., and five U.S. territories: Puerto Rico, Guam, American Samoa, the U.S. Virgin Islands, and the Northern Mariana Islands.