According to this article, all three of these -- Cherokee, Choctaw, and Comanche settled west of the Mississippi in the early 1800s.
http://nationalhumanitiescenter.org/tserve/nattrans/ntecoindian/essays/indianremovalc.htm
who began to settle lands west of the Mississippi River in the early 1800s??
Cherokee, Choctaw, Comanche, Osage
I know it is one of these, but I don't know which one.
2 answers
Hmm, I think I should go with Osage or Cherokee...