Dwarves' Earth Treasures Online
Mass Mine Datolites
Mass City, Ontonagon Co.,
Status: Private Property, No trespassing!
Mine is one of several datolite producing mines to the south of
Mass City with a good variety of colors
and shares the same Pewabic Lobe with
Caledonia Mine and Quincy Mines. Owned by Red Metal Retreat.
You can click on the pictures
to see larger pictures.