Osage Agency

The Osage agency was established in 1872 to oversee the federal government's relationship with the Osage. Congress allowed the Osage to retain ownership of minerals in their reservation lands. When oil was discovered in the area, the allotted Osage became the richest Indian tribe in American history. On the grounds is an elm tree under which many early-day oil deals were made. The tree is called the "million-dollar elm.