Mississippi and Alabama
A divide
Springfield, Illinois and Frankford, Kentucky are the capitals of two states that border the Mississippi River.
1729
A watershed is the area separating two different drainage basins/river systems.
UN Resolution 181.
Columbia River
Georgia and Alabama
Washington and Oregon
The Red River actually flows through four states. These states include Texas, Oklahoma, Arkansas, and Louisiana. This river is1,360 miles long.
The population of a given state can decide, by referendum, if they wish to divide their state into two states.
For the most part the Savannah river borders the states of South Carolina and Georgia.
Columbia River