How were the Jim Crow Laws enforced in the
USA?

Jim Crow laws were state and local laws that enforced racial segregation in the Southern United States. These laws were enacted in the late 19th and early 20th centuries by white Southern Democrat -dominated state legislatures to disenfranchise and remove political and economic gains made by black people during the Reconstruction period.

Explanation:

brainliest plz

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