What is a 2002 silver buffalo dollar worth?

The silver one dollar American Buffalo coins are all dated 2001. This is the only year the U.S. Mint made this coin. You may have a 1 ounce "Silver Round" dated 2002 made to look like the official coin but it is not a U.S. Mint product. Take it to a local buyer of scrap gold & silver for an idea of value.