 The residual capital of the original CP&M&M was sold off to the Cobourg, Blairton & Marmora Railway and Mining Company, formed on 23 June 1887.Their interest was primarily in an attempt to connect the Blairton section to the Ontario and Quebec Railway which passed between the two ends of this branch.This was ultimately unsuccessful, and by this time several other lines, notably the Central Ontario Railway which ran directly through the Marmora mines, were providing service in this area.