The purchase of the Louisiana Territory opened up a vast American frontier. The Louisiana Purchaseexplores the people, expeditions, and struggles of America’s march westward. Easy-to-read text, vivid images, and helpful back matter give readers a clear look at this subject. Features include a table of contents, maps, a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards. Core Library is an imprint of Abdo Publishing, a division of ABDO.