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 large corduroy wood trestle that was used by the line to climb the ridges south of Gunflint Lake. Extending the line in 1904, the logging company had to cross a valley without expending large sums of money. The structure they built, likely in the winter of 1904-1905, was probably one of the most unique rail trestles in all of North America and lasted 103 years. This is the only known video of the trestle before its demise as a result of the 2007 Ham Lake Fire.

Active, 1902-1909.