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 crossing of the Canada-US border from Ontario to Minnesota at the narrows between Little Gunflint Lake and Gunflint Lake. Remains include spikes, rail connectors, rails, telegraph wire and rock cuts.

Active, 1902-1909.