Archaeologists suggest that a flaked-stone obsidian blade could be linked to the expedition led by Francisco Vasquez de Coronado to search for the fabled city of gold. Francisco Vázquez de Coronado was a Spanish explorer and conquistador, who led an expedition from what is now Mexico to present-day Kansas from 1540 to 1542. Coronado was searching for Cibola, also known as the Seven Cities of gold, which according to legend was a fabled province …