What countries does the Ural Mountains run through?
The Ural Mountains run through Russia and Kazakhstan
What is the mountain range and river with the same name that form the boundary between eastern Europe and western Asia?
Let's first correct an important point, grammatically: Mountains cannot "run through" rivers; rivers can run through mountains. Second, no, The Mississippi River's course runs WEST of the Appalachian Mountains, which end in in the State of Georgia, USA. The Mississippi River empties into the Gulf of Mexico, but far west of the mountains.