Just as it opened the markets of the west coast and Asia to the east, it brought products of eastern industry to the growing populace beyond the Mississippi. The railroad ensured a production boom, as industry mined the vast resources of the middle and western continent for use in production.
The transcontinental railroad also brought settlers to the frontier. they brought lumber, wood, people, and other necessities. the railroads also brought settlers and miners who laid claim to Native American land. thus, weakening the Native American hold on the west.
