High Quality Content by WIKIPEDIA articles! Tule Lake Segregation Center National Monument was an internment camp in the northern California town of Newell near Tule Lake. It was used in the Japanese American internment during World War II. It was one of the largest and most controversial of the camps, and did not close until after the war, in 1946. In December 2008 it was chosen by President George W. Bush as one of nine sites?the only one in the contiguous 48 states?to be part of the new World War II Valor in the Pacific National Monument.