🇲🇽 Mexico · Geoglyph
Boquillas Hill Geoglyphs (Gran Desierto de Altar, Sonora)
Late Archaic to Trincheras (Amargosa–Hohokam interface) · Trincheras / Hohokam desert–Tohono O'odham continuity
17 Gran Desierto hill intaglios (300 BCE–1400 CE) on Pinacate cerro islands — Tohono O'odham salt pilgrimage.