The river that separates the east and west U.S. is usually considered the Mississippi.
The Mississippi River divides the US into East and West parts.
Rio Grande and Rio gravo
Rio Grande and Rio gravo
Mississippi River
The Mississippi River.
mississipi
Northwest US. Divides Washington state and Oregon state.
The Mississippi is in the US Longest River in the US Basically divides the country into 2 halfs.
The House of Representatives and the Senate
mississippa arkansaw river
Rio grande
Probably the Missouri river and the Colorado river.