The 50 Statehood Quarters series consists of 50 unique quarter designs released by the United States Mint from 1999 to 2008, representing each state in the order of their admission to the union. The 2006 quarters feature designs from Nebraska, Colorado, North Dakota, South Dakota, and Montana. These coins are part of a collectible series that gained popularity among numismatists and general collectors due to their representational significance and unique imagery for each state. The obverse of each quarter retains the classic portrait of George Washington, while the reverse showcases different elements symbolic of each state.

Item Denomination Series Year Mint
2006-D 25c South Dakota 25c 50 Statehood Quarters 2006 Denver
2006-P 25c South Dakota 25c 50 Statehood Quarters 2006 Philadelphia
2006-S 25c Nebraska Clad DCAM 25c 50 Statehood Quarters 2006 San Francisco