Highgate Springs–St. Armand/Philipsburg Border Crossing

The Rock River (French: Rivière de la Roche) is a tributary of Rock River Bay, an arm of Missisquoi Bay in the northern part of Lake Champlain. The river rises in the town of Franklin, in Franklin County, Vermont, United States, flows west into the town of Highgate, Vermont, and then north into Saint-Armand, Quebec, in the Brome-Missisquoi Regional County Municipality, administrative region of Montérégie, in the southwest of the province of Quebec, Canada. The river then turns south and re-enters Highgate, flowing into Rock River Bay north of Highgate Springs. Besides the village area of Saint-Armand, agriculture is the main economic activity in the river valley; recreational tourism is a secondary activity near Lake Champlain.The Rock River valley is crossed the following roads: Franklin County (upper course): Hanna Road, Beaver Meadow Road, Barnum Road and Browns Corner Road; Highgate (intermediate course): Bouchard Road, Cassidy Road, Gore Road (VT 207) Tarte Road, and Rollo Road; Saint-Armand (in Quebec): chemin Pelletier Sud, chemin de Saint-Armand, chemin Bradley; Highgate (lower course): Saint Armand Road, Interstate 89, and Spring Street (US 7).The surface of the Rock River (except the rapids zones) is generally frozen from mid-December to the beginning of March, but the safe circulation on the ice is generally made from the end of December to the end of February. The water level of the river varies with the seasons and the precipitation; the spring flood generally occurs in March.

Saint-Armand is a municipality in the Canadian province of Quebec, located within the Brome-Missisquoi Regional County Municipality and the Eastern Townships. The population as of the Canada 2011 Census was 1,248. It is located on the Canada–United States border. The Municipality of Saint-Armand and the Village of Philipsburg were amalgamated on February 3, 1999 to become the new Municipality of Saint-Armand.Philipsburg, first known as Missiskoui Bay, was settled in 1784 and was reportedly the first settlement in the Eastern Townships. Saint-Armand, earlier known as Moore's Corners, was the site of the Skirmish of Moore's Corners, an 1837 battle in the Lower Canada Rebellion.

Highgate Springs is an unincorporated community and census-designated place (CDP) in the town of Highgate, Franklin County, Vermont, United States. As of the 2020 census it had a population of 77.The CDP is in northwestern Franklin County, in the western part of the town of Highgate. It sits on the southeast shore of Missisquoi Bay, an arm of Lake Champlain. U.S. Route 7 passes through the southeast side of the community, and Interstate 89 forms the southeast border. Both highways lead south 4 miles (6 km) to Swanton and north 3 miles (5 km) to the U.S.–Canada border at the Highgate Springs–St. Armand/Philipsburg Border Crossing.

Rivière-aux-Brochets Ecological Reserve is an ecological reserve in Quebec, Canada. It was established on December 15, 1999. It is situated near the mouth of the Pike River (French: Rivière aux Brochets) in the Brome-Missisquoi Regional County Municipality of the Montérégie region of Quebec, Canada. It is partially located in the municipality of Pike River and partially in Saint-Armand.

Pike River (French: Rivière aux Brochets) is a tributary of lake Champlain (via Missisquoi Bay), flowing successively in: Franklin County, Vermont, in northern Vermont (United States); and the municipalities of Frelighsburg, Stanbridge East, Bedford, Notre-Dame-de-Stanbridge, Pike River (the eponymous municipality) and Saint-Armand, in Brome-Missisquoi, in the administrative region of Montérégie, in the south of province of Quebec, Canada.Besides the village areas, agriculture and forestry are the main economic activities in this valley. The river surface is generally frozen from mid-December to the end of March. Safe traffic on the ice is generally from late December to early March. The water level of the river varies with the seasons and the precipitation.

Missisquoi Bay is a large extension in the northern part of Lake Champlain, at the East of the output of the latter in Richelieu River. It takes the form of a violin head, with the neck extending from the head of the lake and is about 5 kilometres (3.1 mi) in diameter. The bay is divided between Quebec in Canada and Vermont in the United States. The main town on its banks is Venise-en-Québec, a major summer resort. The river of the same name flows into the bay and the Missisquoi National Wildlife Refuge is located on the American side.

The Missisquoi River is a transboundary river of the east shore of Lake Champlain (via Missisquoi Bay), approximately 80 miles (130 km) long, in northern Vermont in the United States and southern Quebec in Canada. It drains a rural area of the northern Green Mountains along the Canada–US border northeast of Lake Champlain, and an area of Quebec's Eastern Townships. The South Branch rises in Vermont and runs generally from southeast to northwest; the North Branch rises in Lake d'Argent in Eastman, Quebec, and runs from north to south. The North Branch and the South Branch join at Highwater, Quebec, just downriver from North Troy, Vermont. The river then runs in Quebec for approximately 15 miles (24 km), re-entering Vermont at Richford and thence to Lake Champlain's Missisquoi Bay.

Franklin County State Airport (ICAO: KFSO, FAA LID: FSO) is a public airport located three miles (5 km) west of the central business district of Highgate, a town in Franklin County, Vermont, United States. It is owned by the State of Vermont. Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, Franklin County State Airport is assigned FSO by the FAA but has no designation from the IATA.

Venise-en-Québec (French pronunciation: ​[vəniz ɑ̃ kebɛk]) is a municipality in the province of Quebec, Canada, located at the north end of Lake Champlain in the Regional County Municipality of Le Haut-Richelieu. The population as of the Canada 2021 Census was 1,899.

Highgate Center is the primary village and a census-designated place (CDP) in the town of Highgate, Franklin County, Vermont, United States. As of the 2020 census it had a population of 361, out of 3,472 in the entire town of Highgate. The CDP is in northwestern Franklin County, in the south-central part of the town of Highgate. It sits on the north side of the Missisquoi River, a west-flowing tributary of Lake Champlain, where the river passes over Highgate Falls. Vermont Route 78 (Franklin Street) passes through the center of the village, leading southeast 6 miles (10 km) to Vermont Route 105 at Sheldon Junction and southwest 4 miles (6 km) to Swanton. Vermont Route 207 also passes through the village, leading south 9 miles (14 km) to St. Albans and northeast 6 miles (10 km) to the Canadian border at Morses Line.

Highgate is a town in Franklin County, Vermont, United States. The population was 3,472 at the 2020 census. The town is on the Canada–US border and is a border town with Philipsburg, Quebec.

The Swanton Covered Railroad Bridge was a covered bridge in Swanton, Vermont. Built in 1898, it carried the St. Johnsbury and Lamoille County Railroad across the Missisquoi River just west of Swanton village. It was destroyed by fire in 1987, and its site is now occupied by the former West Milton Bridge. The bridge was listed on the National Register of Historic Places in 1973, and has not been delisted despite its destruction.