Baltic Mine - Baltic, MI
Posted by: 
linkys
N 47° 03.841 W 088° 37.998
16T E 375977 N 5213573
The Baltic, located a few miles south of Houghton, was the find that opened up the southern part of Michigan's Keweenaw copper range in the late 1800's.
Waymark Code: WMCFD6
Location: Michigan, United States
Date Posted: 09/01/2011
Views: 8
This mine, long ago closed is on private property. However some of the old buildings and other ruins can easily be seen alongside the road. The large Machine shop is readily accessible, and remains in decent condition, being used by the sheriff for storage. As is typical in the area, the old waste dumps are slowing being hauled off since they are a ready source of rock for construction.
It was an underground copper mine with 5 shafts which opened in 1882 and closed in 1931. #3 shaft was the deepest at 3,839 feet. It is reported that copper crystals, as well as bornite and chalcocite can be found on the tailing piles.
Two websites that have additional information are: and Keweenaw Free Guide.