The 2015 United States Proof Set includes a total of 14 different coins. The 2015 Proof Set includes the five America the Beautiful Quarters. This series will feature one National Park or Site in each of the 50 States, the District of Columbia, and the U.S. Territories. The places featured on the 2015 coins will include Homestead National Monument in Nebraska, Kisatchie National Forest in Louisiana, Blue Ridge Parkway in North Carolina, Bombay Hook National Wildlife Refuge in Delaware, and Saratoga National Historical Park in New York. Other highlights of the set include the increasingly rare 2015 Presidential Dollars, including Harry S. Truman, Dwight D. Eisenhower, John F. Kennedy, and Lyndon B. Johnson. All coins included in the set are produced at the San Francisco Mint and carry the "S" mint mark. These proof coins are struck with sharp detail and display mirrored backgrounds and frosted raised elements for a cameo contrast. The annual proof set has become a collector favorite and a popular method of obtaining examples of each year's coins.