The red line on the map above represents Lewis and Clark's outward expedition. What major mountain range did Lewis and Clark face in their exploration of the Northwestern states of Oregon and Washington?

Question

A.
Rocky Mountains
B.
Santiago Mountains
C.
Appalachian Mountains
D.
Cascade Mountains

Answer 1

The major mountain range that Lewis and Clark faced in their exploration of the Northwestern states of Oregon and Washington is the D. Cascade Mountains.