Why did the colonists want the Ohio River Valley?

In the 1750s, Britain and France had colonies in North America. The British wanted to settle in the Ohio River Valley and to trade with the Native Americans who lived there. The French built forts to protect their trade with the Indians. ... Each colony would still have its own government.

Explanation:

the answer to your question is a. the salt plains

in 1811, he led an expedition, known as the george c. sibley expedition, to improve relations with the pawnee and kansa tribes, and also to locate the rumored jefferson's salt mountain