By March 1864, there were 3,000 refugees at Fort Canby. An additional 5,000 arrived in the camp. They were suffering from the intense cold and hunger. Carson asked for supplies to feed and clothe them and forced the thousands of Navajo to walk to Bosque Redondo. Many died along the way. Stragglers in the rear were shot and killed. In Navajo history, the horrific trek is known as Long Walk of the Navajo. By 1866, reports indicated that Bosque Redondo was a complete failure, Major General Carleton was fired, and Congress started investigations. In 1868, a treaty was signed, and the Navajo were allowed to return to their homeland. Bosque Redondo was closed.