Lewis and Clark Visitor Centers-Nebraska
Indian Cave State Park
Niobrara State Park
Ponca State Park
Missouri River Basin Lewis & Clark
Lewis and Clark National Historic Trail
Fort Atkinson State Historical Park
Missouri National Recreation River
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.