Discovered in 1904 by prospectors Murdy McLeod and George Glendenning, this was the first sign of silver outside the immediate Cobalt area. The claim was sold to two capitalists from North Bay who in turn sold it to the Colonial Mining Company Limited from the State of Maine.
The property was developed by several horizontal adits, a 967-foot vertical shaft, and a mill.
One of the adits is currently being used for guided underground tours, available at the Cobalt Mining Museum. These tours are extremely valuable as they provide an opportunity to experience working conditions as they were in a Cobalt mine over 100 years ago.
Contact the Cobalt Mining Museum to arrange a tour of the Colonial Mine Adit. Tours are usually offered between late June or early July and before August 15th.
Visit the museum at 24 Silver Street or call 705-679-8301 or write cobaltminingmuseum@gmail.com.