The California Channel Islands located off the coast of the Greater Los Angeles area are today known for their rich ecological and recreational heritage, but were not were not mentioned in Article V of the Treaty of Guadalupe Hidalgo (1848) which outlined the U.S.-Mexico border after Mexico surrendered California to the U.S. Indeed, a strict reading of the Treaty of Guadalupe Hidalgo suggested to many groups – indigenous Chumash people, White Americans, and Mexican people – that the islands were still Mexican national territory.
Map by Víctor Busteros Angeles, “Día 23, jueves 5-05. Rumbo a Coronado,” Expedición al México de Ultramar (Feb. 13, 2015), (http://mexicodeultramar.blogspot.com/2015_02_13_archive.html).
U.S.-Mexican, Latino, and Border Historian