The correct answer is they blazed trails through the Rocky Mountains and other difficult terrain.
Mountain men were people who lived in the wild of Rocky Mountains from 1810 to 1880. These men played an important role in <em>creating roads</em> so people from the East could travel to the West, helping the fur companies improve their trade. Many mountain men worked as a <em>“free trappers”</em>(by their own), but a lot of them were hired by fur companies.
Expressed powers. Yes this is really the answer.
1. it stopped the spread of slavery north of the Ohio river
Answer:
The North had few advantages being in geographic advantages, the North had a larger population, a greater industrial base, a greater amount of wealth, more farms than the south, and an established government.
Explanation:
