The final approved design for the 4th National Park quarter was selected from several candidate designs and announced at a special ceremony in Washington, D.C. on March 24, 2010.
Honoring Arizona’s Grand Canyon National Park, the coin’s reverse features a dramatic view of the Colorado River passing ancient Nankoweap granaries. Around A.D. 500, native Puebloans used these granaries to store food and seeds. Grand Canyon was first named a federally protected site in 1893.
Inscriptions on the coin’s reverse include the site name (GRAND CANYON), its location (ARIZONA), the coin’s year of issue (2010), and the motto E PLURIBUS UNUM. The obverse side features a restored version of the George Washington portrait introduced on U.S. quarters in 1932.