The Mississippi River is entirely in the United States.
Mississippi
The Mississippi River is entirely in the United States, North America.
The eastern border of the United States was still the Atlantic Ocean, but after the Louisiana Purchase in 1803, the western border wasn't well defined. We bought the place from France, and even the French weren't entirely sure what they were selling, or what we were buying. Nominally, the Louisiana Purchase included all of the land drained by the Mississippi River, so the western border should have been the Rocky Mountains and the Continental Divide.
none. the river is a boundary line for some of the states.
The two rivers that partially form the eastern boundary of the United States are the Mississippi River and the St. Lawrence River. The Mississippi River flows southward from Minnesota to the Gulf of Mexico, serving as a significant boundary for several states. The St. Lawrence River, situated in the northeastern part of the country, forms part of the boundary between the United States and Canada.
In 1802, the Mississippi River formed the western boundary of the United States. The southern boundary extended to the 31st parallel north latitude.
The Mississippi River spans the United States from Lake Itasca, Minnesota finally opening into the Gulf of Mexico. The nine pairs of American States for which the Mississippi forms the state boundary are Minnesota-Wisconsin, Iowa-Illinois, Missouri-Illinois,
The Mississippi River begins in Minnesota. It is a boundary for Wisconsin, Iowa, Illinois, Missouri, Kentucky, Tennessee, Arkansas and Mississippi. It is a boundary for Louisiana and then turns into Louisiana flowing through Louisiana to the Mississippi River Delta at the Gulf of Mexico.
i am not so sure about 1783, but i am sure that the river that became the western boundary of the united states as the result of the revoltionary war is the MISSISSIPPI RIVER.
The Ohio River is a tributary of the Mississippi and flows into it at the triple boundary of the states of Missouri, Illinois, and Kentucky.
Massachusetts, along with 25 other U.S. states, is east of the Mississippi River. This river is considered by many to mark the western boundary of the Eastern United States.