We acknowledge that we are the archives on the Oglala Sioux Tribal Reservation, however we may not physcially have what your looking for on site such as every:
Research family and local history; it includes census, military, and gravestone records with over 25,000 family and local history books; accessible from home through the SD State Library portal with your OLC library card.
Research family and local history with access to thousands of collections from around the world, with immigration, military, birth, death, census records; store your family tree info through individual account.
Access: Inside Library Only
Genealogy information focusing upon US military records by war; accessible from home through the SD Library portal.
Genealogy information from the Church of Jesus Christ of Latter Day Saints; no cost and requires your own registration but enables you to build on your research as well as save your work in your account.
Extensive tribal, band, and tiospaye information here; it helps to register for an account to improve search results but you can still find a lot of information on the Teton/Lakota boards.