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Port Huron Northern High School (PHN; Northern) is a high school located in Port Huron, Michigan, United States. It is part of the Port Huron Area School District and serves grades 9–12.

WORW (91.9 FM, "The Wave") is a high school radio station located in Port Huron Northern High School broadcasting a CHR/Top 40 format. Licensed to Port Huron, Michigan, it first began broadcasting on September 30, 1981.In fall of 2005, Faculty Advisor Carrie Maggs updated the high school radio station's studio with an automation system allowing the station to begin broadcasting 24 hours a day, 7 days a week. Today the current Faculty Advisor is Ronald Neal and is also a speech teacher and broadcasting teacher. The current transmission range for the station is approximately 13 miles from the tower at 150watts (located at Port Huron Northern High School).WORW TV is 91.9FM's student-run and produced TV station also located in Port Huron, Michigan. They started producing news, sports, and community news packages in 2016.

Fort Gratiot Township ( GRASH-it) is a charter township of St. Clair County in the U.S. state of Michigan. The population was 11,108 at the 2010 Census. It is named for Fort Gratiot, an American fort located there off and on between 1814 and 1879.

Lakeside Cemetery in Port Huron, Michigan was first established in 1877. The City of Port Huron purchased the original 148 acres (60 ha) from local Port Huron resident John Hoffman. In 1900 the cemetery increased size to a peak of 176 acres (71 ha) but over the years the size has diminished to its current size of 96.5 acres (39.1 ha). The Lakeside Cemetery also has a "Soldiers Lot" encompassing lots 144–159. This portion of the cemetery was donated by the United States Government in 1881, when the remains of 135 soldiers from Fort Gratiot were entered into the cemetery. Fort Gratiot as two historical installations. The first installation was dated from 1814 until 1821. The second installation was in 1828–1879. Both installations were on the west bank of the St. Clair River approximately two miles South of the cemetery. Of the 135 soldiers buried only remains of 35 soldiers are known. This lot is overseen by the "Great Lakes National Cemetery" organization.In 1884, the US government dedicated a monument to the Soldiers Lot to honor the 100 unknown soldiers from Fort Gratiot. The soldiers fell victim to the cholera epidemic from July 4–18, 1832. The monument was built by Philo Truesdell from the Port Huron Marble and Granite Works. A statue of marble showing a Union soldier attired in Civil war uniform stands atop the column. The monument is 24 feet (7.3 m) high and cost $1,500 to complete.

WGRT (102.3 FM) is an adult contemporary radio station in Port Huron, Michigan. It is owned by Port Huron Family Radio and broadcasts with a power of 3,000 watts. WGRT signed on in October 1991. The station airs a satellite-delivered AC format ("Today's Hits and Yesterday's Favorites") from Citadel Media. The station can be heard as far as Lapeer County and in parts of northern Macomb and southern Sanilac counties. The station is also heard as far east as Strathroy, Ontario; however, reception in the Canadian portion of WGRT's listening area, as well as areas closer to Detroit and Windsor, may be compromised, following the approval by the CRTC to upgrade the broadcast power of CHST-FM in London, Ontario (65 mi (105 km) east of Port Huron), increasing its maximum ERP from 12,100 to 100,000 watts; and the sign-on of CINA-FM in Windsor in 2012. Like WGRT, CHST-FM and CINA-FM both also broadcast on 102.3 FM.

Fort St. Joseph was a fort established in 1686 by Daniel Greysolon, Sieur du Lhut for New France. Erected on the St. Clair River, the fort was intended to prevent English trade with native tribes. In 1687, about two hundred coureurs de bois, five hundred Algonquian, Henri de Tonti, Nicholas Perrot, Oliver Morel de La Durantaye, and thirty French soldiers gathered there under Marquis de Denonville's orders to prepare for an attack on the Six Nations Iroquois Confederacy during the Iroquois Wars. With a lack of supplies and no orders from the governor, the fort's commander, Louis-Armand de Lom d'Arce de Lahontan, Baron de Lahontan, burned Fort St. Joseph on August 27, 1688, and moved to Michilimackinac. According to historian Reuben Gold Thwaites, the action caused "no disadvantage" to New France.

Fort Gratiot Light , the first lighthouse in the state of Michigan, was constructed north of Fort Gratiot in 1825 by Lucius Lyon, who later became one of Michigan's first U.S. Senators.The Fort Gratiot Light marks the entrance to the St. Clair River from Lake Huron (going south) in the southern portion of Michigan's Thumb. The light is still active and the grounds are an active Coast Guard facility, but it has recently been handed over to the Port Huron Museum. It is the oldest surviving lighthouse in Michigan. There is also a public beach and park on the property, known as Lighthouse Beach. It is across the river from Point Edward Front Range Light.

WNFA (88.3 FM) is a Christian teaching/worship radio station in Port Huron, Michigan, United States, branded as "Bluewater Christian Hit Radio". WNFA broadcasts with 1,300 watts. WNFA formerly featured programming from the WAY-FM Network (formerly the Christian Hit Radio Satellite Network) until national distribution of WAY-FM programming (except for "The Wally Show" mornings) to non-owned stations ceased on July 1, 2013. After a weekend of stunting with construction sounds, a revamped Power 88.3 debuted with a new local lineup. The Wally Show continues to air in morning drive. WNFA is also the former flagship station of the Christian teaching and inspirational music format "Wonderful News Radio," which now airs solely on sister station WNFR 90.7 FM. On June 22, 2022, at 9 a.m., WNFA changed their format from contemporary Christian to Christian teaching and worship, branded as "Thrive Radio".

The Thomas Edison Depot Museum (previously the Grand Trunk Western Railroad Depot) is a former railway depot located at 520 State Street in Port Huron, Michigan. It has been converted into a museum. The building was listed on the National Register of Historic Places in 1977.

The Blue Water Bridge is a twin-span international bridge across the St. Clair River that links Port Huron, Michigan, United States, and Point Edward, Ontario, Canada. The Blue Water Bridge connects Highway 402 in Ontario with both Interstate 69 (I-69) and Interstate 94 (I-94) in Michigan.

The Port Huron–Sarnia Border Crossing connects the cities of Port Huron, Michigan and Sarnia, Ontario. It is located at the Blue Water Bridge at the St. Clair River. Both the US and Canada border stations are open 24 hours per day. The US Customs and Border Protection upgraded its inspection facilities in 2011, and Canada Border Services Agency upgraded its facilities in 2012. In 2017, inspectors at Port Huron processed 1,579,646 cars and 826,288 trucks.

Fort Gratiot was an American stockade fort in Fort Gratiot, Michigan, in Saint Clair County, Michigan. The former location of the fort was listed on the National Register of Historic Places in 1980.