The prescence of rock.
rocky mountains
Rocky mountains Appliation Mountains Sierra Nevada
The Great Lakes and the Rocky Mountains
they are perfect for battles
The Great Lakes and the Rocky Mountains
Rocky Mountains --->Great Plains--->Mississippi River---> Appalachian Mountains
They are called that because that is what they are -- huge rocks.
The Great Lakes and the Rocky Mountains
Some major US physical features include the Rocky Mountains, the Great Plains, the Mississippi River, the Great Lakes, and the Appalachian Mountains.
The Rocky Mountains, Coast Mountains, Fraser River, and The Inside Passage.
toponym
uplift