The Klamath Indian Reservation became the home of the Klamath Tribes, a merger of the Klamath, Modoc, and Yahooskin tribes created by the Treaty of 1864. The reservation was in the Klamath Basin, where the Klamath Tribes became one of the wealthiest tribal groups due largely to the timber industry. Despite opposition, Congress passed the Klamath Termination Act in 1954, which ended the federal recognition of the Klamath Tribes. Tribal lands were eventually reorganized into National Forest areas and lands that could be sold. The Klamath Agency was an Indian Agency established for the Klamath Indian Reservation in 1866. The Klamath Reservation was terminated in 1961, but the Agency still exists.