The Sacagawea Dollar is a golden-colored coin minted in the United States, first introduced in 2000. It features the image of Sacagawea, a Shoshone woman who played a pivotal role in the Lewis and Clark Expedition. The coin is made of a copper core and manganese-brass alloy, giving it its distinctive golden hue. The 2016 Sacagawea Dollar is part of the series that celebrated Native American contributions to U.S. history and features various designs commemorating different aspects. Collectors often seek out Sacagawea Dollars, especially those in uncirculated or proof condition, for their artistic and historical significance.