A PreHispanic hunter gatherer indigenous people, the Modotpetoc were artisans. Inspired when consuming peyote, they created memorial masks of respected ancestors. These are the Lost Heads exhumed from ancient inland sand dunes, possibly burial sites, under the Civic Center in the City of San Francisco. Found during excavation for a new government building, archaeologists consider the masks to be Modotpetoc seismic icons and deities. Celebrated and worshiped, face masks were ornaments provided as ceremonial offerings to those who receive, experience, and survive great earthquakes. Honoring myth, modern day Modotpetoc display masks on homes as guardians to welcome and celebrate seismic events with bravery, no fear, and as a greeting from the beloved deceased.