Swan Island (Michigan)

The South Pointe Drive–Frenchman's Creek Bridge is a bridge located on South Pointe Drive over Frenchman's Creek in Grosse Ile, Michigan. It was listed on the National Register of Historic Places in 2000.

Calf Island is an island in the Detroit River, in Michigan. It has a surface elevation of 571 feet (174 m). It is located in the Trenton Channel about 1,000 feet (304 m) west of the southern tip of Grosse Ile and Swan Island, and Hamburg Island is just to the northwest. The 7-acre (2.8 ha) island is administered locally by Grosse Ile Township. Added in 2002, Calf Island was one of the newer additions to the Detroit River International Wildlife Refuge. Under the refuge, the Michigan Department of Natural Resources and Ontario Ministry of Natural Resources identifies more than 29 species of waterfowl and 65 kinds of fish that make their home in and around the waters of Calf Island. The island often serves as a nesting location for a small number of herons. Calf Island is the smallest property added to the refuge, and the island has remained relatively isolated and unused compared to other areas in the region.

Round Island is an island in the Detroit River in southeast Michigan. It is part of Grosse Ile Township, in Wayne County. Its coordinates are 42°05′32″N 83°10′02″W, and the United States Geological Survey gave its elevation as 581 ft (177 m) in 1980.

Naval Air Station Grosse Ile was a Naval air station located on the southern tip of Grosse Ile, Michigan. It operated from 1927 until late 1969, and is now a township airport. During World War II NASGI was one of the largest primary flight training stations for Naval aviators, and RAF pilots. Among the many thousands of Navy pilots who began their careers at NASGI is game show host Bob Barker. Former President George H. W. Bush finished his active Navy career at NASGI attached to Torpedo Squadron 153(VT-153).

Grosse Ile Municipal Airport (ICAO: KONZ, FAA LID: ONZ) is on Grosse Ile, in Wayne County, Michigan. It is owned by the Township of Grosse Ile. The Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021 categorized it as a local reliever airport facility.Most U.S. airports use the same three-letter location identifier for the FAA and IATA, but Grosse Ile Municipal Airport is ONZ to the FAA and has no IATA code.

The Gibraltar Road–Waterway Canal Bridge is a bridge located on Gibraltar Road over the Waterway Canal in Gibraltar, Michigan. It was listed on the National Register of Historic Places in 2000.

Celeron Island is an island in the Detroit River. It is in Wayne County, in southeast Michigan, and the southernmost island within Grosse Ile Township. Its coordinates are 42°04′47″N 83°10′24″W, and the United States Geological Survey gave its elevation as 571 ft (174 m) in 1980.Due to erosion, it now comprises two separate islands. Celeron Island is uninhabited and administered by the Michigan Department of Natural Resources, as the island was included into Pointe Mouillee State Game Area in 1976. Celeron Island is undergoing a restoration project with funding from the National Oceanic and Atmospheric Administration.Celeron Island was named for Pierre Joseph Céloron de Blainville.

Horse Island is an island in the Detroit River, in southeast Michigan. It is in Wayne County. Its coordinates are 42°04′55″N 83°11′06″W, and the United States Geological Survey gave its elevation as 571 ft (174 m) in 1980. Walleye can be caught there.

Humbug Marsh, a 1.88 square kilometres (0.73 sq mi) wetland in southeastern Wayne County, Michigan, is a constituent element of the Detroit River International Wildlife Refuge. It is listed as a Ramsar wetland of international importance.Although Humbug Marsh is located within heavily populated Metro Detroit, it is acclaimed as a high-quality remnant of the wetlands that once lined both sides of the international Detroit River. This slow-flowing river was a hotspot of biological diversity, particularly as a location for fish spawning. The remnant marsh is classified as a place of "importance to threatened, endangered, and vulnerable species and ecological communities."Humbug Marsh is located on the Downriver shoreline of the Detroit River, straddling the boundary line between Gibraltar and Trenton in southeastern Wayne County, Michigan. A small offshore island (Humbug Island) is included within the official boundaries of the marsh.The Humbug Marsh parking lot is located at 5437 West Jefferson Avenue, Trenton, Michigan.

Hickory Island is an inhabited island in the Detroit River. It is in Wayne County, in southeast Michigan. Its coordinates are 42°05′15″N 83°09′20″W, and the United States Geological Survey gave its elevation as 581 ft (177 m) in 1980.Hickory Island is one of fifteen islands that comprise Grosse Ile. While some are uninhabited, Hickory Island has been developed into residential subdivisions containing "moderately sized homes on smaller lots".Hickory Island is connected on the north to Meso Island (sometimes called "Upper Hickory"), and from there to Grosse Ile, by the East River Road Bridge. This bridge was described as being "in serious condition" by the Detroit Free Press in January 2020; the Michigan Department of Transportation had posted a speed limit of 5 miles per hour (8.0 km/h) on the bridge in November 2019 due to the structure's deterioration. The Hickory Island Park and Yacht Club, located in the center of the island, offers recreational facilities for its residents.In January 2021, a large metal monolith, measuring approximately 8 ft (2.4 m) by 11.5 ft (3.5 m), was found to have been placed on Hickory Island anonymously and without explanation. This was one of many such cases around the world which occurred after widespread media coverage of the Utah monolith in November 2020.

Meso Island is an island in the Detroit River. It is in Wayne County, in southeast Michigan. Its coordinates are 42°05′30″N 83°09′10″W, and the United States Geological Survey gave its elevation as 584 ft (178 m) in 1980. Numerous types of fish spawn at the island; a 1982 report by the U.S. Fish and Wildlife Service listed northern pike,: 10 carp,: 13 bullhead catfish,: 19 rock bass,: 22  and bluegill.: 23 

The East River Road–North Hickory Canal Bridge is a bridge located on East River Road over the North Hickory Canal, connecting Grosse Ile, Michigan with Hickory Island to the south. It was listed on the National Register of Historic Places in 2000.