PBS
Pbs: The West: The Louisiana Purchase Treaty
This site from PBS contains a transcription of the three documents concerning the purchase of Louisiana from France. There is a link to other documents.
Other
The Story of the Us Told in 141 Maps
This collection of United States maps includes a year-by-year. Beginning from the Declaration of Independence and extending to present-day, students will learn explore and interact with these maps that change year-by-year.
Annenberg Foundation
Annenberg Learner: u.s. History Map Interactive
Become a geography whiz as you learn how the United States was settled. Discover how the continent was irrevocably changed by European colonization, the events that caused the wholesale displacement and decimation of the land's original...
US National Archives
Nara: American Originals: Louisiana Purchase Treaty
Wonderful NARA site that provides pictures of the original treaty and agreements of the Louisiana Purchase. Brief introduction discusses the amount of land purchased and the cost per acre described by the Purchase.
Annenberg Foundation
Annenberg Learner: United States History Map: The Nation Expands
After examining a map showing the expansion of the United States, click to read about each addition to the country and see where that addition is. Play Expansion Concentration to test your skills.
Annenberg Foundation
Annenberg Learner: The Nation Expands: Mexican Cession, 1848
See a map of the land acquired by the United States as a result of the Treaty of Guadalupe Hidalgo, called the Mexican Cession. From Annenberg Media.
Library of Congress
Loc: Merica's Story: Oregon Territory
Read about the settling of Oregon country and how westward expansion prompted Congress to make it a territory.
University of Oregon
Mapping History Project: Territorial Expansion of the u.s. 1783 1853
Click on the sliding bar and watch how the United States territory grew with the Louisiana Purchase, Florida Acquisitions, Texas Annexation, Oregon Country, and Mexican Cession.
Independence Hall Association
U.s. History: Westward Expansion: The Louisiana Purchase
Read about the fortuitous purchase made that doubled the size of the United States. See why Napoleon was willing to sell the land, and find out about the quandary Thomas Jefferson was in as he had to go against his strict construction...
Library of Congress
Loc: America's Story: Louisiana Purchase
This Library of Congress timeline series discusses the Louisiana Purchase.
Scholastic
Scholastic: Grolier: Lewis and Clark: Louisiana Purchase
A summary of one of the largest land purchases in history, the Louisiana Purchase.
The History Cat
The History Cat: Us History: Louisiana Purchase
Covers two topics related to the growth of the new United States - the Louisiana Purchase and the settling of the Great Plains. How the Louisiana Purchase came about as a result of a decision by Napoleon is explained. The Great Plains...
Ducksters
Ducksters: History: Louisiana Purchase for Kids
Kids learn about the Louisiana Purchase which is when President Thomas Jefferson bought land west of the Mississippi from the French.