Houghton Mifflin Harcourt
Harcourt: School Publishers: Carving a Memorial to Chief Crazy Horse
This Harcourt Publishing site is all about the memorial carved in the Black Hills of South Dakota in honor of Chief Crazy Horse.
Other
The Weekly South Dakotan: South Dakota History for 4th Grade
From the very beginning and through the twentieth century, this comprehensive collection of lessons will enrich students studying the history in between and the effects on South Dakota.