Columbia subject headings:
Harvard subject headings:
Balsas River Valley (Mexico)--Antiquities.
Excavations (Archaeology)--Mexico--Balsas River Valley.
Indians of Mexico--Funeral customs and rites--Mexico--Balsas River Valley.
Indians of Mexico--Mexico--Balsas River Valley--Antiquities.
Tombs--Mexico--Balsas River Valley.
Princeton subject headings:
Excavations (Archaeology)--Mexico.
Infiernillo site (Mexico).
Mexico--Antiquities.