From The Way to Rainy Mountain- N. Scott Momaday.

This story is about his grandmother, Aho. It talks through the life and struggles the Kiowas had. They were forced out of their land and went on to a journey passing Devil's tower. Her life had always been in the shadow of Rainy Mountain, but soldiers from Fort Sill ruined that. Through her journey with other Kiowas they had many rituals. For example, one was the Sun Dance. People also began to take away that right to by trying to stop their ways. The whites came killed all their buffalo and hung a buffalo bull on the medicine tree. This was such a horrible act it meant that they had to leave from it forever.