The Gunflint and Lake Superior Railroad was a logging line operated by the Pigeon River Lumber Company from 1902 to 1909. It connected to the Canadian Northern Railway Duluth Extension/North Lake Subdivision (ex-Port Arthur, Duluth and Western Railway) at Milepost 79. It travelled six miles from the Ontario side of Gunflint Lake into Minnesota passing Crab and Whisker Lakes to near Topper Lake.

This video covers the Ontario portion of the line, from the junction with the Duluth Extension to Gunflint Lake, featuring numerous spikes, boundary markers and possible remains of the Canadian customs house.

Active, 1902-1909.