Port Austin Reef Lighthouse
The light was first lit in 1878, and its pier was modified in 1899. It is still operational and is automated. The foundation materials are a pier, and the tower is constructed of yellow brick, with buff markings. It is an octagonal, 60-foot tall tower, with an attached keeper house. However, the focal plane is 76 feet (23 m). It originally had a fourth-order Fresnel lens by Henry Lepaute of Paris and installed in 1899. In 1985 the lens was replaced by a 12-volt solar-powered Tideland Signal 300 mm acrylic optic, which eliminated the need to maintain the submarine cable.
Charity Island Light
The octagonal cast iron lantern displayed a fixed white Fourth Order Fresnel lens light which was constructed in 1857 with a 39-foot tower which provided a 13-nautical-mile range of visibility. The Charity Island Preservation Committee of the Arenac County Historical Society is restoring the tower. The original keeper’s house was razed, and a newly restored private residence has been built in its place and on its foundation. It is being operated as a restaurant and a bed and breakfast.
Port Aux Barques Light
The Pointe aux Barques Lighthouse ranks among the ten oldest lighthouses in Michigan. It is an active lighthouse maintained by the US Coast Guard remotely, located in Lighthouse County Park on Lake Huron near Port Hope, Michigan in Huron County. “Pointe aux Barques” means ‘Point of Little Boats’, a descriptor of the shallow shoals and reefs that lurk beneath these waves, presenting a hazard to boats as they round Michigan’s Thumb.
Harbor Beach Lighthouse
The Harbor Beach Lighthouse is a “spark-plug lighthouse” located at the end of the north break-wall entrance to the harbor of refuge on Lake Huron. The break-wall and light were created by the United States Army Corps of Engineers to protect the harbor of Harbor Beach, Michigan, which is the largest man-made freshwater harbor in the world. Harbor Beach is located on the eastern edge of the Thumb of Huron County, in the state of Michigan.