Northwest ordinance of 1787
it established a procedure for surveying and selling the western lands north of the Ohio river
It established a procedure for surveying and selling the western lands north of the Ohio river.
The Nile river in North Africa.
Mississippi-Missouri river system
The two rivers that in the United States that make up the longest river system in north America are the Missouri and Mississippi river.
Because north points in north direction
The Mississippi-Missouri.
There is a Mackenzie River which is the largest river system in Canada, North America. However there are also rivers named "Mackenzie" such as that in Queensland, Australia.
magnetic north
The Finlay-Peace-Mackenzie River System is approximately 2,600 miles long. This particular river system is the second longest in North America.
Missouri river and Mississippi river
Missouri river and Mississippi river