Depicts Captains Lewis and Clark planning another day of exploration. Lewis holds a rifle and journal and Clark points into the distance. A riverbank is seen in the background. The inscriptions include “Liberty”, “In God We Trust”, “Lewis & Clark Bicentennial”, the expedition dates “1804” and “1806”, the date of issue for the coin “2004”.

William Clark (1770–1838) was an American explorer, soldier, Indian agent, and territorial governor. Along with Meriwether Lewis, Clark led the Lewis and Clark Expedition of 1804–1806 across the Louisiana Purchase to the Pacific Ocean, the first major effort to explore and map much of what is now the Western United States and to assert American claims to the Pacific Northwest. Before the expedition, he served in a militia and the United States Army. Afterward, he served in a militia and as governor of the Missouri Territory. From 1822 until his death in 1838, he served as Superintendent of Indian Affairs.

Meriwether Lewis (1774–1809) was an American explorer, soldier, politician, and public administrator, best known for his role as the leader of the Lewis and Clark Expedition. President Thomas Jefferson appointed him Governor of Upper Louisiana in 1806.

Depicts Thomas Jefferson's Indian Peace Medal, commissioned for Lewis and Clark's expedition. Two feathers 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 medal bearing the likeness of America's third president on one side, and symbols of peace and friendship on the other. The medals were presented to Native American chiefs and other important leaders as tokens of goodwill at treaty signings and other events. It shows the hand of a Native American (with a broad metallic bracelet with the image of an eagle) and the hand of a European-American (with ornamented cuff of a military uniform) clasped in a friendly handshake below a crossed ceremonial pipe and tomahawk.