2006 – S – America the Beautiful Quarter – SOUTH DAKOTA Silver Proof Coin

A 2006 quarter from the 50 State Quarters Program, minted in San Francisco (“S”). This coin is a proof version, struck from a composition of 90% silver and 10% copper, with a face value of 25 cents. The reverse design features Mount Rushmore with the state’s bird, a Chinese ring-necked pheasant, flying above.