Tybo (Silver — Lead — Zinc Camp). Eight miles northwest of this point lies what was formerly one of the leading lead-producing districts in the nation.  Producing erratically from ore discovery in 1866 to the present (the last mill closed in 1937), Tybo managed to achieve an overall creditable record.Tybo, in its infancy, was known as a peaceful camp, but later strife between the Irish, Cornish, and central Europeans changed its reputation.  Later, these groups banded together to drive away a company of Chinese woodcutters. The town was not unique in having three residential sections each with its ethnic group.  However, all children went to the same brick school.