Chief Niwot (which means “Left Hand” in English) was a leader of the Southern Arapaho tribe born around 1825. He spent a great many winters in Boulder Valley, particularly at Valmont Butte, which is considered a sacred site for the Southern Arapaho. In 1851, the United States signed the Treaty of Fort Laramie with the Arapaho, Cheyenne, Crow, Sioux, Assiniboine, Mandan, Hidatsa, and […]