2011 America the Beautiful 5oz Silver - Chickasaw National Recreation Area, OK with OGP

Since 2010, the US Mint released five silver America the Beautiful coins annually. The 5oz silver coins will be complete in 2021, each representing a historical monument or a treasured national park. These bullion coins were introduced following the success of the state quarter program.Chickasaw National Recreation Area is a National Recreation Area situated in the foothills of the Arbuckle Mountains in south-central Oklahoma near Sulphur in Murray County. It includes the former Platt National Park and Arbuckle Recreation District.The area was established as Sulphur Springs Reservation on July 1, 1902; renamed and redesignated Platt National Park on June 29, 1906; combined with the Arbuckle Recreation Area and additional lands and renamed and redesignated on 17 March 1976. 

The obverse carries the familiar coin portrait of George Washington - the portrait featured on current Washington quarter