they landed at the mouth of the columbia river
They traveled the Missouri River.
That would be the mouth of the Columbia River at Astoria, Oregon.
the Missouri river , {they also explored the Columbus river and rocky mountains
Lewis and Clark explored Missouri River, and Columbia River.
Lewis and Clark traveled on the Colorado River for their expedition.
Lewis and Clark found the Missouri River.
on the west coast, in Oregon at the end of the Columbia river
It ended at the mouth of the Columbia River near Astoria, Oregon.
The Lewis and Clark expodition ended in 1806
The Missouri river
yes they did