Sudbury District in the context of Sudbury, Ontario

Espanola (2021 population census 5,185) is a town in Northern Ontario, Canada, in the Sudbury District. It is situated on the Spanish River, approximately 70 kilometres (43 mi) west of downtown Sudbury, and just south of the junction of Highway 6 and Highway 17.

The town is where the first experimental rules for the sport of ringette were created in 1963 by Mirl Arthur "Red" McCarthy using a group of local high school girls. Today, Espanola is considered "The Home of Ringette" while North Bay, Ontario, is considered "The Birthplace of Ringette" though the title is often shared by both.

The North Channel is the body of water along the north shore of Lake Huron, in the Canadian province of Ontario and the state of Michigan in the United States of America. It stretches approximately 160 nautical miles (300 km) and is bordered on the east by Georgian Bay, on the west by the St. Marys River, to the north by the eastern Algoma District and part of the Sudbury District, and to the south by the islands of Manitoulin, Cockburn, Drummond and St. Joseph. At its widest point it is over 30 km (20 miles) wide.

In addition to Georgian Bay, the North Channel is connected to the main body of Lake Huron by the False Detour Channel and the Mississagi Strait, which separate the above-noted islands.

The Spanish River is a river in Algoma District, Sudbury District and Greater Sudbury in Northeastern Ontario, Canada. It flows 338 kilometres (210 mi) in a southerly direction from its headwaters at Spanish Lake (west branch) and Duke Lake (east branch) to its mouth at the North Channel of Lake Huron just outside the community of Spanish.

The river's name and the name of the nearby towns of Espanola and Spanish are said to be due to French explorers and Jesuit priests encountering Ojibwe peoples speaking Spanish in the area, apparently as a result of a Spanish woman having been taken captive during an expedition far to the south.

Greater Sudbury (French: Grand Sudbury), also known as Sudbury, is the most populous city in Northern Ontario with a population of 166,004 in 2021. Greater Sudbury is the only single-tier municipality in Northern Ontario, the largest city in Ontario by area and the fifth largest in Canada. The city is separate from, but entirely surrounded by the Sudbury District.

The Sudbury region was inhabited by the Ojibwe people of the Algonquin group of the Anishinaabe prior to the founding of Sudbury after the discovery of nickel and copper ore in 1883 during the construction of the Canadian Pacific Railway. Greater Sudbury was formed in 2001 by merging the cities and towns of the former Regional Municipality of Sudbury with several previously unincorporated townships. Being located inland, the local climate is extremely seasonal, with average January lows of around −18 °C (0 °F) and average July highs of 25 °C (77 °F).

French River, also known by the French equivalent Rivière des Français, is a municipality in the Canadian province of Ontario, in the Sudbury District. The municipality had a population of 2,828 in the 2021 Canadian census. It was formed on January 1, 1999, through the merger of the Township of Cosby, Mason and Martland and surrounding unincorporated portions of the Unorganized South Sudbury District. It was named after the French River, which flows through the municipality.

The borders of the municipality are composed of Highway 69 to the west (the French River Trading Post and French River Inn properties are also included within the municipal boundary), West Arm to the north on Highway 535 (just east of Shaw Rd.), the end of Wolseley Bay Rd to the east (Highway 528) and the community of Monetville to the northeast.

Parry Sound District is a census division of the Canadian province of Ontario. Its boundaries are District of Muskoka to the south, the Sudbury District to the north-northwest, the French River and Lake Nipissing in the north, Nipissing District and North Bay in the north and east and parts of Algonquin Park in the northeast.

It is geographically in Southern Ontario, but the Ontario and federal governments administer it as part of Northern Ontario. Like other census divisions in Northern Ontario, it does not have an incorporated county, regional municipality, or district municipality level of government but instead serves as a purely territorial division, like the other districts of Northern Ontario. Instead of an upper tier of municipal administration, all government services in the district are provided by the local municipalities or by the provincial government itself.

Manitoulin District is a district in Northeastern Ontario within the Canadian province of Ontario. It was created in 1888 from part of the Algoma District. The district seat is in Gore Bay.

It comprises Manitoulin Island primarily, as well as a number of smaller islands surrounding it, such as Barrie, Cockburn, and Great La Cloche islands. Previously it included the municipality of Killarney on the mainland, until this was transferred to Sudbury District in the late 1990s. Subsequently, more mainland portions were added to Killarney and these, together with Unorganized Mainland Manitoulin District, were also transferred to Sudbury District in 2006, about 1,600 square kilometres (600 sq mi) in all.

Killarney is a municipality located on the northern shore of Georgian Bay in the Sudbury District of Ontario, Canada. Killarney is commonly associated with Killarney Provincial Park, which is a large wilderness park located to the east of the townsite which occupies much of the municipality's expanded boundary.

In addition to the community of Killarney itself, the communities of Hartley Bay and Bigwood, and the ghost towns of French River, Collins Inlet, and Key Harbour, are also located within the municipal boundaries. The eastern end of the La Cloche Mountain Range is also located within the municipality of Killarney.