Mountain Div. Shipper Question

I recently started a similar thread on the B&M/MEC Board-

Does anyone recall which shippers used the Maine Central's Mountain Division in the latter half of this century? Also, are there any websites on this subject? This information will all be greatly appreciated for a study I am conducting. Any insights into the railfreight potential of this line would be great!

-Rob in Portland

gave you a synopsis of the line on the BM/MEC site where the ? was also asked. Bud