Describe the development of industries and transportation
in the South

i am not sure if this is what you need but this is what i found

Explanation:

The South's transportation was very similar to the North's transportation only on a smaller scale. They had steam engines, but their engines powered large steam boats; however, with such large numbers of steam boats the rivers quickly became crowded.

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