Four Corners, Minnesota

The Arrowhead Refinery Superfund site is a 10-acre former waste oil recycling facility, located in Hermantown, Minnesota, within a white cedar wetland. The refining process generated a waste stream of highly acidic, metal-laden sludge which was disposed of in an unlined two-acre lagoon on the site and waste process water which was discharged into a wastewater ditch in a wetland area. Arrowhead Refining Company incorporated in 1961 and continued the re-refining activities until 1977. A public health risk assessment stated that if no action was taken to remedy the site, use or development of the site would result in unacceptable health effects on user populations. It was also determined that there was a future potential exposure risk for offsite drinking water wells across the road from the site and in the pathway of the contaminated groundwater plume. The record of decision (ROD) was issued in September 1986.

Canosia Township is an urban township in Saint Louis County, Minnesota, United States. Canosia is a name derived from the Algonquian language meaning "pike fish". The population was 2,158 at the 2010 census.Midway Road (County Road 13) and Martin Road (County Road 9) are two of the main routes in the township. Other routes include Lavaque Road (County Road 48), Lavaque Bypass Road, and Old Miller Trunk Highway. U.S. Highway 53 passes briefly through the southwest corner of Canosia Township. The Pike Lake business district is located within the township. The town hall and fire hall are located at the corner of Midway Rd. and Martin Rd. (4896 Midway Rd, Duluth MN 55811) Canosia Township is administered by a three-person town board that meets monthly. The town board oversees township road maintenance, the Canosia Volunteer Fire Department, the township cemetery, recreation area and recycling shed.

Hermantown is a city in Saint Louis County, Minnesota, United States. The population was 10,221 at the 2020 census. A suburb of Duluth, it was at one point the county's only city to grow in population, as much of the area's residential and commercial expansion occurred there. Hermantown is near the tip of Lake Superior. The eastern part of Hermantown has an appearance typical of a lower-density bedroom community, with large, leafy lots and occasional subdivisions. The car-oriented "Miller Hill area", or Miller Trunk Corridor of Duluth, has sprawled well past the city boundary line into this part of Hermantown. The western part of Hermantown is more rural, reminiscent of the city's past agricultural focus. Hermantown's motto is "The City of Quality Living". Hermantown's mayor is Wayne Boucher, who won a 2008 election against Susie Stockinger. Boucher ran unopposed for a second term in 2012 and received 4,111 votes; there were 79 write-ins.

The Natural Resources Research Institute (NRRI) is a United States (U.S.) based research institute founded by the Minnesota state legislature within the University of Minnesota Duluth. NRRI is a non-profit, applied research organization, established with a mission to improve the economy of Minnesota. The Institute aims to help launch small businesses and provides ongoing research and development assistance.

Simar is an unincorporated community in Solway Township, Saint Louis County, Minnesota, United States, located near Munger.

Munger is an unincorporated community in Solway Township, Saint Louis County, Minnesota, United States. The community is located 11 miles west of the city of Duluth at the junction of U.S. Highway 2 and County Road 223 (Munger Shaw Road). Munger is located seven miles west of the city of Proctor.

The Federal Prison Camp, Duluth (FPC Duluth) is a minimum-security federal prison in the north central United States, located in Minnesota for male offenders. It is operated by the Federal Bureau of Prisons, a division of the United States Department of Justice. FPC Duluth is located on the former Duluth Air Force Base near the southwestern tip of Lake Superior, halfway between Minneapolis–St. Paul and the Canada–United States border, and seven miles (11 km) north of Duluth.

For the United States Air Force use of this facility, see Duluth Air National Guard Base.Duluth International Airport (IATA: DLH, ICAO: KDLH, FAA LID: DLH) is a city-owned public-use joint civil-military airport located five nautical miles (9 km) northwest of the central business district of Duluth, a city in Saint Louis County, Minnesota, United States. It serves the Twin Ports area, including Superior, Wisconsin. Mostly used for general aviation but also served by three airlines, it is Minnesota's third-busiest airport, behind Minneapolis–St. Paul International Airport (MSP) and Rochester International Airport.The Minnesota Air National Guard's 148th Fighter Wing, equipped with F-16C Fighting Falcons, is based at Duluth Air National Guard Base, which is located on the grounds of the airport. Aircraft manufacturing company Cirrus is also based on the airport grounds, where it has its main manufacturing facility and headquarters.

Duluth Air National Guard Base is a United States Air National Guard base located on the grounds of Duluth International Airport. It is home to the 148th Fighter Wing.

Solway Township is a township in Saint Louis County, Minnesota, United States. The population was 1,944 at the 2010 census. Solway Township was named after Solway Firth.U.S. Highway 2 and State Highway 194 (MN 194) are two of the main routes in the township. Other routes include Canosia Road (County Road 98), Maple Grove Road (County 6), and Morris Thomas Road (County 56). U.S. Highway 2 runs roughly diagonally throughout Solway Township, in a northwest–southeast direction. MN 194 runs east–west through the northern portion of the township. Morris Thomas Road (County 56) runs east–west through the southern portion of the township. Canosia Road (County 98) runs north–south through the middle of Solway Township. The unincorporated community of Munger is located within Solway Township. Munger is located at the junction of U.S. 2 and County Road 223.

Proctor High School is a 9–12 secondary school in Proctor, Minnesota, United States that was established in 1912. Situated in the Duluth–Superior area, Proctor High School and the connected A.I. Jedlicka Middle School serves about 1,000 students. The Proctor school district contains five schools and they generally have eighteen students for every full-time teacher according to a study done in 2011.

Proctor is a city in Saint Louis County, Minnesota, United States. The population was 3,120 at the 2020 census. The city was established as Proctorknott in 1894, with the name coming from former Kentucky Governor J. Proctor Knott. Knott was famous for delivering the speech The Untold Delights of Duluth to the U.S. House of Representatives. The city's name was shortened to Proctor in 1904.Proctor's welcome sign on U.S. Highway 2 reads: "You Have a Place in Proctor".