In a time when the United States could not expand fast enough, railroads became essential for the country to grow.The Transcontinental Railroadnarrates the race to build rail lines into the West for money, land, and fame. 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.