By Paul H. Meier (Paul) on Saturday, January 6, 2007 - 10:46 pm:
Sean,
The objects are the foundations for the various jigs and tables used to separate the copper from the rock. These are "downstream" of the steam stamps and are in multiples of the number of stamps, 6 in this case. The Baltic Mine which opened in 1897, operated until 1932 and mined native (metallic) copper, so the separation was by mechanical crushing of the copper bearing rock and the use of differences in specific gravity to separate the copper from the rock. Tremendous amounts of water were used. The water was added to the rock at the stamp head. The crushed rock and copper moved through the mill as a slurry. The Baltic Mill closed in 1922 and Baltic Mine rock was milled at the Champion Mill in Freda.
By Thomas Baird (Thomas) on Sunday, September 13, 2009 - 09:55 am:
Remains of history that stay. Thanks 4 sharing.