"Lost" Trails

I was idling trying to figure out trails which have been forgotten and/or have lost maintenance, among other conditions.



-T-Lake Falls trail beyond lean-to

-Trail up into col between Colden and false summit, south of Lake Arnold

-Upper Twin Brook trail in between Cliff and Redfield

-Boreas Mountain trail to fire tower



Any other trails (of which I am sure they are plentiful)? I am interested into stories of the trails of old, if you will.