American sculptor Glenna Goodacre designed the obverse (heads) of the Golden Dollar, which features the likeness of Sacagawea, the young Shoshone woman who assisted Lewis and Clark on their exploration of the Louisiana Purchase almost 200 years ago. The reverse (tails) of the coin, designed by U.S. Mint Sculptor/Engraver Thomas D. Rogers, Sr., features a soaring Bald Eagle and 17 stars, representing the 17 states of the Union at the time of the Lewis and Clark expedition.