The Tule Lake National Wildlife Refuge is a National Wildlife Refuge of the United States in northern California near the Oregon border. It covers 39,116 acres in the Tule Lake basin. It is part of the Klamath Basin National Wildlife Refuge Complex, and is a crucial part of the Pacific Flyway corridor for migratory birds. The refuge was established in 1928 by President Calvin Coolidge to preserve habitat for birds and other animals.