National Archives Foundation

DocsTeach: A portal with thousands of primary sources on American history topics. "The billions of historical documents and other materials housed at the National Archives throughout the country include information relating to American Indians from the 18th through the 21st century. " The American Indians collection contains primary resources and teaching activities for educators, collection includes photographs, documents, and materials from the following subject areas: Artwork and Artifacts, Treaties, Removal Policy, Reservation Period, Attempts at Assimilation, Indian Schools, Documents of the Bureau of Indian Affairs, Little Bighorn, Wounded Knee, materials grouped by geographic region or state, and numerous other topics. "Primary source documents included on this site generally come from the holdings of the National Archives and are in the public domain, except as noted." See website for full holdings and any restrictions on available materials.