The Frankfort Light is a lighthouse located on the north breakwater in the harbor in Frankfort, Michigan. The current light was constructed in 1912 and placed on the National Register of Historic Places in 2005.
The Harbor of Refuge Light is a lighthouse built on the ocean end of the outer Delaware Breakwater at the mouth of the Delaware Bay, just off Cape Henlopen. It was built to function with the Delaware Breakwater East End Light in order to mark the National Harbor of Refuge.
The first Saginaw River lighthouse was constructed from 1839 to 1841, in a period when large quantities of lumber were being harvested and shipped from the heart of Michigan via river and the Great Lakes to the East Coast of the United States via the Erie Canal and Hudson River. This connection to major eastern markets was critical to the development of central Michigan.
Buffalo Harbor North and South entrance Lights are lighthouses located at the entrance to Buffalo harbor in New York. The south light is at Stony Point breakwater, and the North light was relocated.
The Chicago Harbor Lighthouse is an automated active lighthouse, and stands at the south end of the northern breakwater protecting the Chicago Harbor, to the east of Navy Pier and the mouth of the Chicago River.
The Milwaukee Pierhead Light is an active lighthouse located in the Milwaukee harbor, just south of downtown. This aid to navigation is a 'sister' of the Kenosha North Pier Light.
The Milwaukee Breakwater lighthouse was built in 1926 in the harbor of Milwaukee in Milwaukee County, Wisconsin to mark the entrance to the harbor. One of the last fully enclosed breakwater lighthouses in the Great Lakes, the structure was placed on the National Register of Historic Places in 2011.
The Menominee North Pier lighthouse is located in the harbor of Menominee, Michigan. The station was first lit in 1877. The current structure and its still operational light was lit in 1927, and automated in 1972. It is also sometimes called the "Menominee (Marinette) North Pierhead Light".
The Michigan City Breakwater lighthouse is located in the harbor of Michigan City, Indiana.
Ashtabula Harbor Light is a lighthouse in Ashtabula, Ohio. It was listed in the National Register on August 8, 1983.
The Harbor Beach Lighthouse is a "sparkplug lighthouse" located at the end of the north breakwall entrance to the harbor of refuge on Lake Huron. The breakwall 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.
The Marquette Harbor Light is located on Lake Superior in Marquette, Michigan, a part of the Upper Peninsula. It is an active aid to navigation.
The Rock of Ages Light is a U.S. Coast Guard lighthouse on a small rock outcropping approximately 2.25 miles (3.62 km) west of Washington Island and 3.5 miles (5.6 km) west of Isle Royale, in Eagle Harbor Township, Keweenaw County, Michigan. It is an active aid to navigation.
The Port Washington Breakwater Light is a lighthouse built in 1935 at the entrance to the Port Washington, Wisconsin harbor on Lake Michigan. The second tower at this location, it remains an active aid to navigation. It was listed on the National Register of Historic Places in 2018.
The Duluth South Breakwater Inner Light is a lighthouse on the south breakwater of the Duluth Ship Canal in Duluth, Minnesota, United States. It forms a range with the Duluth South Breakwater Outer Light to guide ships into the canal from Lake Superior. The current structure was built from 1900 to 1901.
The Grand Marais Harbor of Refuge Inner and Outer Lights are a pair of lighthouses located on the west pier at the entry to Grand Marais Harbor of Refuge, in Grand Marais, Michigan. They were listed on the National Register of Historic Places in 2012.
The Navigation Structures at Pentwater Harbor are navigational structures located at the west end of Lowell Street in Pentwater, Michigan. They were listed on the National Register of Historic Places in 2001.
The Racine Reef Light was a lighthouse located in Lake Michigan some two miles east of Racine, Wisconsin, marking the edge of its eponymous shallows. It was torn down in 1961 and replaced with a skeleton tower on the same foundation.
The Keweenaw Waterway Lower Entrance Light, also known as the Portage Entry Light, is a lighthouse located at the south end of breakwater at mouth of the Portage River in Torch Lake Township. It was listed on the National Register of Historic Places in 2014.
The Presque Isle Harbor Breakwater Light is a lighthouse located on the breakwater at northeast side of Presque Isle Harbor in Marquette, Michigan. It was listed on the National Register of Historic Places in 2016.
