■ Impacts on historic and prehistoric properties will be “severe, irreversible and irretrievable,” the EIS says. The tentatively approved Barrel Alternative (see glossary) would bury, damage or destroy 82 such sites, the EIS says. The area has five prehistoric sites with human remains and 31 likely to have them.
■ The Tohono O’Odham consider the Santa Ritas a Traditional Cultural Property named Ce:wi Duag — a cultural landscape of archaeological sites, springs, plants, animals, landforms, natural resources and vistas. They consider it necessary to perpetuate their culture and believe impacts can’t be mitigated.
■ Planned mitigation includes burying human remains, excavating important sites and monitoring construction for cultural discoveries. Artifacts would be removed under federal rules and ground disturbance outside the mine would be limited.
■ Rosemont would create a charitable trust to finance recreation, cultural and environmental conservation projects. It would put in $6 million in the mine's first year of production, $500,000 annually over 25 years and up to $25 million more depending on copper prices.