Relacionar Columnas Westward MovementVersión en línea Link the pairs. Use the information we saw last week: The westward expansion. por Andrea Hurtado 1 Westward Movement 2 Indian Removal Act 3 Oregon Trail, 4 Indian Removal 5 western pioneers Expansion of the United States westward across the Appalachian Mountains and eventually across the Mississippi River. Traders looking for new sources of goods a route that stretched over 2,000 miles from Missouri to Oregon law allowed the federal government to force American Indians to move west Threatened by the U.S. Army, most American Indian groups signed treaties agreeing to expulsion.