(Iron Ore Slag)
Leland Harbor was home to an iron ore foundry during the 1870’s. Ore from the upper peninsula was shipped down to Leland, where the ore was refined into iron for use in the railroad. When iron ore is heated in a blast furnace, the impurities (slag) becomes molten and separates from the raw iron. The slag was dumped into Lake Michigan and is now found in the form of beautiful “blue stones” rolling up on the Leelanau Peninsula shores of Lake Michigan.