#Experts find early ocher mine in Mexican underwater caves
“#Experts find early ocher mine in Mexican underwater caves” This Dec. 12, 2019 photo released by CINDAQ.ORG, or “Centro Investigador del Sistema Acuífero de Quintana Roo,” shows a diver in the “La Mina Roja” passage of the Sagitario underwater cave system near Playa del Carmen in Mexico’s Yucatan Peninsula. The discovery of remains of human-set…