Some schools may have different criteria or definition; check each school to be sure.
For example, the California State University system lists suboptions of specific tribes or groups under “American Indian or Alaska Native”, one of which is “Latin American Indian”. (However, the California State University system does not consider ethnicity in admissions, and all except one campus is purely GPA and SAT/ACT based for admissions, and it offers no financial aid for non-California residents.)
https://www.calstate.edu/sas/documents/applicationform-undergraduate.pdf