Proclamation 10882—Establishment of the Sáttítla Highlands National Monument

Proclamation 10882, issued by President Biden on January 14, 2025, establishes the Sáttítla Highlands National Monument in northern California. The proclamation designates a defined area containing geological and scientific features of significance for formal protection under the National Monument framework. The stated purpose is the preservation, restoration, and protection of objects of scientific and historic interest within the designated area.

The designation affects landowners, residents, and users in and around the Sáttítla Highlands region, as well as any industries — such as extractive or development interests — that might otherwise have had access to the area. It also affects federal land management agencies, which would assume oversight and stewardship responsibilities for the newly designated monument.

Presidential authority to establish national monuments derives from the Antiquities Act of 1906, which grants the president power to protect areas of scientific, historic, or prehistoric interest on federal lands. The use of this authority has occasionally been contested, particularly when the designated area is considered very large or when the proclamation is viewed as constraining resource use in ways Congress did not specifically authorize. Whether this particular designation stays in place depends on decisions by subsequent administrations, as national monument boundaries and designations have historically been subject to revision.

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