What land was sacred to the Sioux Indians?

The Sioux Indians considered the Black Hills of South Dakota as sacred land. This region holds deep spiritual significance and is central to their cultural identity and history. The land was the site of important historical events, including the Battle of Little Bighorn, and is also where many Sioux creation stories and traditions are rooted. The U.S. government's seizure of the Black Hills following the discovery of gold in the late 19th century remains a contentious issue, leading to ongoing legal and cultural disputes.