PLSSS HEL I WILLL GIVE YOU BRAINLIEST PLSSS HEL I WILLL GIVE YOU BRAINLIEST PLSSS HEL I WILLL GIVE YOU BRAINLIEST PLSSS HEL I WILLL GIVE YOU BRAINLIEST

Name two other explorers that came after the Corps. of Discovery, and what area of the west the explored. (PLS HELP THIS IS DUE VERY SOON)