The obverse of the silver dollar features Captains Lewis and Clark planning another day of exploration. Lewis holds a rifle and journal and Clark points into the distance. A river bank is seen in the background. The inscriptions include “Liberty”, “In God We Trust”, “Lewis & Clark Bicentennial”, the expedition dates “1804” and “1806”, the the date of issue for the coin “2004”.
The reverse features the Peace Medal that Lewis and Clark presented to Native Americans during the course of their journey. Two features are on either side with 17 stars above, representing the number of states when the expedition took place. Inscriptions include “E Pluribus Unum”, “One Dollar”, and “United States of America”. The words “Peace and Friendship” appear on the image of the medal.
The Philadelphia Mint produced both the proof and uncirculated versions of the Lewis and Clark Silver Dollar. In addition to individual coin sales, the United States Mint offered two specially produced sets. The Lewis & Clark Coinage and Currency Set included the uncirculated version of the silver dollar, a silver plated bronze duplicate of the Peace Medal, two uncirculated 2004 Westward Journey Nickels, an uncirculated 2004 Sacagawea Dollar, a replica series 1901 $10 Bison Note, three Lewis and Clark postage stamps, and two informational booklets. The Lewis & Clark Coin & Pouch Set included the proof version of the silver dollar and a handmade American Indian pouch.
Mintage:
| P Uncirculated | P Proof |
| 142,015 | 351,989 |
Weight: 26.7300 g
Composition: 90% Silver (0.7736 ounces of silver)
Diameter: 38.1 mm