Container is standard bluetop peanut butter jar.
Start at the Clark Mine, and take the road to the north. The road can be easily driven by cars
The Manganese Mine is one of the more interesting mines of the Keweenaw, as it is NOT a copper mine. Manganese minerals were discovered south of Copper Harbor by geologist Douglass Houghton in the 1830s. In 1881, an open cut to a depth of 75 ft. was mined by the Cambria Iron Co. and approx. 800 tons of material was removed. In 1883, a shaft was sunk and another 400 tons of manganese ore was removed for assay. It was determined that the ore was unsuitable for steel production, and the mine was abandoned.
I've read that there is more to this mine besides the rock pile by the road, but it is in the woods. After the logging, that area appears a mess and I did not bushwack into it. May return in either late fall or spring when the leaves are off.