How it all startedCobalt's silver mining story dates back to 1903. Plan your visitIf you find the old days exhilarating, then you may want to pack your bags for a prolonged visit to Cobalt, Ontario, and not just for the mines. Aside from the mining museum, Cobalt is rich with other sites for you to see. Admission is also affordable: The Cobalt Mining Museum charges $20 for adults, $15 for seniors and students, and is free for children under six. The Cobalt Mining Museum is located at 14 Silver Street in Cobalt, Ontario.