Use the map below of southwestern europe to answer the following question

i think the answer would be A. hope this helps.

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

this act gave the federal government the power to relocate any native in the east to territory west of the mississippi river.