In 1915, a pair of range lights was established on Cap-aux-Corbeaux using steel towers furnished by the Goold, Shapely, and Muir Company of Brantford, Ontario for $668.50. H. Trudel erected the towers on the cape for $4,123.75, and the lighting apparatus was provided and installed and the work inspected for $4,585.86. Charles E. Tremblay was hired as the first keeper of Cap-aux-Corbeaux Range.
The following description of the range lights appeared in the 1917 edition of the St. Lawrence Pilot:
A fixed white light is shown, 96 feet above high water, from a red square steel framework tower, surmounted by white watchroom and red octagonal lantern, 81 feet high, situated about 1 ½ miles eastward from Cap au Corbeau Pier.These original skeletal towers with enclosed watchrooms were still in use in 1971, but modern towers serve the range today. Two lights are shown from each of the range towers: a fixed white light along the range at a bearing of 24° and a fixed white light that is visible over an arc from 252° to 4°, where North corresponds to 0°
Another fixed white light is shown, 309 feet above high water, from a similar structure, 64 feet high, situated 562 yards 27° from the front light.
These lights in line, astern, bearing 27° lead up North Channel from Cap au Corbeau to Cape Maillard.
Keepers: Charles E. Tremblay (1915 – 1923), G. Mailloux (1923 – 1928), A. Mailloux (1928 – at least 1937).