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Aztec archaeological site near Tenochtitlán closes due to lack of funds and COVID-19

cultural-heritage · 2026-04-27

A recently discovered Aztec tunnel in Mexico, part of the ancient Albarradón de Ecatepec dam system, will be reburied due to funding shortages and the pandemic. The 8.4-meter-long tunnel, found two years ago by the National Institute of Anthropology and History (INAH), contains 11 petroglyphs and stucco reliefs depicting a bird of prey, a flint, and other subjects. The Mexican government had planned to make it a tourist attraction but now cites insufficient resources and low vaccination coverage (under 20%) as reasons for closure. INAH had previously warned of vandalism and looting risks if left open, proposing a viewing corridor and window. With allocated funds exhausted, research has also ceased. The tunnel will be covered with earth until conditions improve.

Key facts

  • The Aztec tunnel is located near the ancient capital Tenochtitlán in Mexico.
  • It is part of the Albarradón de Ecatepec, a dam system protecting against floods.
  • The tunnel is 8.4 meters long and contains 11 petroglyphs and stucco reliefs.
  • The discovery was announced by INAH two years ago, in 2019.
  • The Mexican government cited pandemic and lack of funds for closure.
  • Vaccination coverage in Mexico is below 20% of the population.
  • The tunnel will be covered with earth to prevent damage and theft.
  • Research on the site has been suspended due to exhausted funds.

Entities

Institutions

  • National Institute of Anthropology and History (INAH)
  • Mexican government

Locations

  • Tenochtitlán
  • Mexico
  • Ecatepec
  • Chiiconautla

Sources