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.
Answer:
3, there is very little oxegyn :)
Explanation:
please give me brainliest this took me a long time to figure out :)
This was after the Wars, and people had started to get their lives back. Population increased drastically. There was a need of more food and supplies.
It's why the 50s were called the baby booming era.
Cowboys spent over 12 hours in the saddle, they suffered from rheumatism, damage to their spines and a wide variety of injuries related to their work.