Collectors all around the world love the U.S. Mint's commemorative quarter programs. The current America the Beautiful series has impressive engravings honoring our national parks and historic sites. This 5-coin short set includes the 2017 issues struck in finest-quality proof form with precious silver content. These special sets from the U.S. Mint contain 90% silver issues and have substantially smaller mintages than the year's regular proof sets. Honored in this set are Effigy Mounds National Monument in Iowa, Frederick Douglass National Historic Site in Washington D.C., Ozark National Science Riverways in Missouri, Ellis Island National Monument in New Jersey, and George Rogers Clark National Historic Park in Indiana.