There are more mountains on the west side(left side)
there are more mountains on the west side of the mississippi river.
There are more mountains west of the Mississippi River.
There are more mountains west of the Mississippi River!
There are more mountains west of the Mississippi River. The mountains west of the Mississippi River are also higher than those east of the river.
the west side has the most mountains
west
If you're talking about just in US territory, then west.
yes. the Rockies
the west
west
there are more on the east than the west.
its amazingly west