[1] The line is named for John Egan, the owner of 250 square miles of land in today's Algonquin Provincial Park.
Egan had developed the land by opening several "depot farms" that sold produce to the workers in the surrounding areas.
The branch point wyed off to the west, crossing the Madawaska and then following the modern path of McCauley Lake Road.
[1] When trees in this area were used up, the end section of the line was lifted and re-laid and extended running northward from a point just short of McCauley Lake.
The endpoint, "End of Steel", now features the rentable Kitty Lake Ranger Cabin, built using materials from the original logging camp.