The double bore tunnels were shared by the DL&W and by the Northern Electric. Both bores are in impeccable shape for there age. Both are passable with a cross shaft inside. The "newer" tunnel is located on the other side of Route 11 up on the hill. There are access points to both ends, however, CP Police are not to nice to trespassers. If you are to brave it and sneak a peak, the "newer" tunnel is worth the investigation. Brick lined with two massive air shafts. Vosburg is located outside the village of Tunkhannock which is a short drive (20 mins.) from Nicholson. The RBMN does in fact use this ex-Lehigh Valley tunnel. This tunnel as well is worth the investigation. There is access at both ends. The only area that the Lehigh Valley went to "relatively" close was Montrose. That line came in from the west, the Northern Electric and DL&W came in from the east. As for pictures capturing the original double bores live, I have been searching for years and have yet to come across any. Hope this info helps.
Brian
www.trainworks.net/