It has been many years since I've seen the White Pine line in person. Did it not receive much in the way of maintenance in recent years? The track that runs from the "main" at Bergland to the mine itself is practically brand new, at least by railroad standards. Or is it the "main" that is in tough shape? Perhaps CN is keeping its options open by filing a Notice of Discontinuance as opposed to an Abandonment Exemption with the STB. Or perhaps they felt the state of Michigan might oppose an abandonment petition.