the scars of the 1903 fire still show on Potaywadio Ridge above Lower Jo Mary Lake
The article in the link below captures some of the history of the log drive era (c.1840-1955) I uncovered in my research.
https://drive.google.com/file/d/0B8KLqI1sS-zSa0p5V3JWajRmYzA/view?usp=sharing
looking across Nahmakanta Lake to Nesuntabunt Mountain that once had log sluices
logs once filled the outlet of Rainbow Lake (c.1845-1952)
many river drivers lost their lives in Pollywog Gorge
in the spring logs shot into this pool on Bean Brook from c.1845-1935