Archer Point Light by the Commonwealth between 1964 and 1979. By order of construction the lights were Cape Capricorn Light, New Caloundra Light, Point Danger Light, New Burnett Heads Light, Fitzroy Island Light, Point Cartwright Light and itself. The light characteristic shown is four flashes, separated by two seconds, every twenty seconds, White at 153°-276°, 305°-313° and 334°-338°, Green at 276°-305° and 320°-334°, Red at 313°-320° and 338°-358° (Fl.(4)W.R.G. 20s). The white sector indicates the clear passage into the channel, while the red and green sectors indicates the ship is outside the channel. The current light source is a 35,000 cd 120 Volt
Port Sanilac Light Port Sanilac Light Port Sanilac Light is a United States Coast Guard lighthouse located on Point Sanilac, near Port Sanilac on the eastern side of Michigan's Thumb. It is an automated and active aid to navigation on Lake Huron. Characterized by shallow water and sandbanks, the stretch of coastline between the Fort Gratiot Light and Pointe aux Barques Light is a hazard to navigation. Even after the establishment of the Sand Beach Harbor of Refuge Light in 1875, of coast line still remained completely unlit. Eighteen years after the first attempts to get congressional funding, the station was established and