The St. Louis Gateway Arch is a tribute to Thomas Jefferson and the explorers and pioneers who shaped the American West. Located in St. Louis, Missouri, it stands 630 feet (189 m) high, making it the tallest monument in the United States. Included on the grounds of the arch are the The Jefferson National Expansion Memorial, the Museum of Westward Expansion, and St. Louis Old Courthouse, the site of the first two trials of an American slave s fight to gain freedom. This true American symbol is something you will want to visit on your next family vacation! This book will allow students to determine the main idea of a text; recount the key details and explain how they support the main idea.