Lewis and Clark Visitor Centers-Washington
Alpowai Interpretive Center
Columbia Gorge Interpretive Center
Fort Walla Walla Museum
Ice Harbor Dam & Visitor Center
Lewis & Clark Interpretive Center
Sacajawea Interpretive Center
Yakama Nation Cultural Heritage Center
Did You Know?
Two hundred years after the Lewis and Clark Expedition, the only physical evidence of the journey is found near Billings, MT. In July 1805, William Clark carved his name into the soft rock of what he called Pompeys Tower. This site is now preserved at Pompeys Pillar National Monument.