The Sacramento-San Joaquin Delta National Heritage Area was designated in 2019 as the first National Heritage Area in California. The Delta Protection Commission, a state agency, is the coordinating entity.
Stop 12 of the cell phone tour for the main grounds at the John Muir National Historic Site, which houses the Martinez Adobe. This stop includes interpretive information about the history of the Anza Expedition, part of the Juan Bautista de Anza National Historic Trail.
