Sorry folks. Thats Gros Cap Reef on Lk. Ontario in Southern Whitefish Point. The plow shape helps fend off ice and waves and its at the mouth of St. Marys River system. This is the light that made the US light at Pt. Iroquois obsolete. Man, I didn't think I could remember all that. Ha. ha! Those books are great, eh!!
Give me a few minutes and I'll dig out another one.