Here is a list from the book "Guide to treasure in Pa."
in Tioga county there are a number of ghost coal and logging towns.
Leetonia: shouldnt be hard to find as it did have a post office, the mill closed in 1921 and people
started leaving
Morris: coal and logging town, now ghost, chemical company opened there but was a ghost town by
1928
Tiadaghton: nearly a ghost town today with 2 or 3 homes still being lived in. it was a busy logging
town with hotel,post office, 2 stores, saw mill, 20 to 30 houses. post office closed in 1936
Fall Brook: a mining town near Wellsboro, now only one house is still there
also near Wellsboro is Landrus, Roaring Branch, Oregon Hill, all gone now, but all were mining towns.
One note: I was west of there, towanda area, and started detecting a ghost town called LaQuinn, this was a very large and busy town with company store and a number of houses. after a few hours of working on a area east of the town, and around a few remains of small worker houses, I was empty handed. Thoughts went through my mind, was it done so many times before, then it hit me! These people worked and lived through the company and owed the company store, and since the companies take all there pay and give credit out to buy from their stores, they were always kept indebt! This doesnt mean there are no finds but just harder to get, and I am sure there are caches around them too.
Planning a trip up there this summer, to do the old barkley town, very old, and if you go to the town you will find a large grave yard on the right side of a long dirt road and the town is on the left behind a hill of coal slag. nothing left as rumor has it that the plague hit the town and killed many and the people left burning the town to the ground. I did some of the grave yard a number of years ago but never did the town. you can walk into the woods and see where the main street went and there are lots of signs of homes, no foundations but domestic shrubs and flowers not seen in a wood setting.
happy hunting and I hope this helps you some.
Roger