Algonac State Park

The LeRoy Smith House is a private house, designed by Alden B. Dow, and located at 9503 Frank Street in Algonac, Michigan. It was listed on the National Register of Historic Places in 1996.

Port Lambton is an unincorporated community in St. Clair Township, Lambton County, Ontario, Canada. According to the latest census, 1084 people live within this community. In its early days, the village developed out of local transport and agricultural trade via rail and ship and evolved mainly into a summer resort community, serving seasonal residences and summer cottagers through much of its history. The village is now home to mostly permanent residences and commuters supported by larger cities and towns such as Sarnia and Wallaceburg. Every Civic Holiday weekend in August the town hosts its annual Gala Days. This community is served by two elementary schools, several churches, and a small service industry. The public school is Riverview Central School and the Catholic school is Sacred Heart. Until the mid-1980s Port Lambton served as a registered port of entry into Canada by utilizing a ferry crossing from nearby Roberts Landing, Michigan, and docking facilities on much of the village's waterfront. Following the ending of ferry operations at Port Lambton, the former port facility and Customs office located at the foot of Stoddard Street on the St. Clair River was transferred to the Department of Fisheries and Oceans. The federal government through the Canadian Coast Guard continues to operate the facility as a seasonal Inshore Rescue Boat Station.

Algonac ( AWL-gə-nack) is a city in St. Clair County of the U.S. state of Michigan. The population was 4,196 at the 2020 census. Incorporated as a village in 1867 and again as a city in 1967, Algonac is located at the southern end of the St. Clair River and contains a long boardwalk and riverfront park. Algonac State Park is located just north of the city. The city is also notable for the founding and headquarters of the now-defunct Chris-Craft Boats company.

Cottrellville Township is a civil township of St. Clair County in the U.S. state of Michigan. The population was 3,406 at the 2020 Census.

The Walpole–Algonac Ferry is a passenger and vehicle ferry connecting Walpole Island, Ontario, Canada, and Algonac, Michigan, United States, via the St. Clair River. It serves as a border crossing of the Canada–United States border. The ferry has existed in some form since at least 1922, and is currently operated by Walpole Algonac Ferry Ltd., a private company based in Canada. Since the closures of the Bluewater Ferry in 2018 and the Detroit–Windsor Truck Ferry in 2023, it is the only ferry operating between Michigan and Ontario.

Chris-Craft Boats was an American boat manufacturer founded by Christopher Columbus Smith (1861–1939). The company was sold by the Smith family in 1960 to NAFI Corporation, which changed its name to Chris-Craft Industries in 1962. The current successor is Chris-Craft Corporation, which produces motorboats under the Chris-Craft name.

Russell Island is a small private island in the St. Clair River in the U.S. state of Michigan between Algonac and Walpole Island, Ontario, Canada. It is immediately upriver from Sand Island which is itself immediately upriver from Harsens Island; it includes two smaller islands, Anderson Island on the northwest, and "The Gold Coast" on the southwest. The island, which is accessible only via passenger ferry or by private watercraft, contains about 150 cottages. There are no cars on the island; the only motorized vehicles are golf carts. Russell Island is part of Clay Township in St. Clair County and is an acceptable name for the Algonac ZIP code 48001, which serves most of the township on the mainland.

Fawn Island is a small Canadian island located in the St. Clair River between Sombra, Ontario and Marine City, Michigan. The island is approximately 50 miles (80 km) northeast of Detroit, Michigan and Windsor, Ontario. There are over 50 cottages on the island, all accessible via the island's two canals. The canals divide the island into three islets, joined by two small bridges.

The Belle River is a 73.5-mile-long (118.3 km) river in the U.S. state of Michigan, flowing into the St. Clair River in Marine City at 42°42′25″N 82°29′50″W. The North Branch Belle River rises out of Long Lake at 43°00′50″N 83°08′41″W in section 22 of Attica Township in southeast Lapeer County. Long Lake is fed by the Long Lake Drain, which drains marshy areas to the south of the lake. From Long Lake, the river flows eastward around the north side of Imlay City. It is fed by the Hunt, Pennell, and Clark Corner drains on the northeast of Imlay City and turns southward, where it joins the main branch of the river at 42°59′31″N 83°03′57″W, now near the intersection of Interstate 69 and M-53. The main branch of the Belle River rises in the south of Dryden Township at 42°53′54″N 83°07′50″W, in a marshy area near the boundary between Lapeer and Oakland counties. It flows mostly north and east until joined by the north branch, after which it flows mostly south and east into St. Clair County. It passes the north side of Memphis, then turns southeast and passes through the northeast corner of Macomb County. Interstate 94 crosses the river in the northeast corner of Casco Township. The river continues east by southeast through China Township and into East China Township, where it turns south less than a half mile from the St. Clair River and parallels the St. Clair for a few miles before its mouth in downtown Marine City. The river's watershed drains portions of Lapeer, Macomb, Oakland, and St. Clair counties.

Cardinal Mooney Catholic High School is a private, Catholic high school in Marine City, Michigan. It is located in the Roman Catholic Archdiocese of Detroit.

Pearl Beach is an unincorporated community and census-designated place (CDP) in St. Clair County in the U.S. state of Michigan. The population of the CDP was 4,698 at the 2020 census. The community is located within Clay Township.

Harsens Island is a wet marshy location at the mouth of the St. Clair River on Lake St. Clair, in the U.S. state of Michigan. Politically, the island is in Clay Township of St. Clair County.