The 2018 Sacagawea Dollar is a one-dollar coin produced by the United States Mint at the Denver Mint. These coins feature an image of Sacagawea, a Shoshone woman who aided Lewis and Clark in their expedition, on the obverse, while the reverse showcases an eagle in flight. Sacagawea Dollars were minted beginning in 2000 as part of a broader initiative to promote the use of dollar coins. They are considered collectible due to their unique design, historical significance, and limited mintage in certain years.