The Trinity Alps Wilderness is a 525,627-acre (2,130 km2) designated wilderness located in northern California, roughly between Eureka and Redding. It is jointly administered by Shasta-Trinity, Klamath, and Six Rivers National Forests. About 4,623 acres (18.71 km2) are administered by the Bureau of Land Management. The wilderness is located in the Salmon and Scott Mountains, subranges of the Klamath Mountains region. The high, granitic and ultramafic peaks of the eastern half of the wilderness area are known as the Trinity Alps. Granite peaks at the core of the area are known as the White Trinities, reddish ultramafic peaks in the southeast are known as the Red Trinities, and the forested mountains in the western half of the wilderness are known as the Green Trinities.