... They did everything they could to survive 14 15 In the 1800s Americans east of the Mississippi River began heading west New territories in the Glossary West were opening up and some people wanted ... Permissions Department, Scott Foresman, 1900 East Lake Avenue, Glenview, Illinois 600 25 10 V0G1 14 13 12 11 10 09 08 07 06 05 Opener: ©North Wind Picture Archives ©Archives Charmet/Bridgeman Art Library ... these regions More and more Americans began heading west Jim Beckwourth, a former enslaved person, became a mountain man On the Trail Families traveled west in the spring from Nebraska or Missouri,...