Grosse Ile North Channel Range Light by James Marvin Phelps Via Flickr: Grosse Ile North Channel Range Light Detroit River Grosse Ile, Michigan The Grosse Ile Lighthouse, also known as the Grosse Ile North Channel Range Light, is a historic beacon located on Grosse Ile, Michigan, in the Detroit River. Built in 1906, it served as a crucial navigational aid for ships traveling between Lake Erie and the bustling ports of Detroit. The lighthouse, with its distinctive white tower and black lantern room, was part of a system of range lights that helped mariners safely navigate the tricky waters of the river. Though it is no longer in active use, the structure remains a cherished local landmark and a reminder of the region’s rich maritime history.