The Firesteel River is a river

River

A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

 in Thunder Bay District

Thunder Bay District

Thunder Bay District is a district and census division in Northwestern Ontario in the Canadian province of Ontario. The district seat is Thunder Bay....

, northwestern

Northwestern Ontario

Northwestern Ontario is the region within the Canadian province of Ontario which lies north and west of Lake Superior, and west of Hudson Bay and James Bay. It includes most of subarctic Ontario. Its western boundary is the Canadian province of Manitoba, which disputed Ontario's claim to the...

 Ontario

Ontario

Ontario is a province of Canada, located in east-central Canada. It is Canada's most populous province and second largest in total area. It is home to the nation's most populous city, Toronto, and the nation's capital, Ottawa....

, Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

. It flows from Trap Lake, 3 kilometres (1.9 mi) east of the Canadian National Railway

Canadian National Railway

The Canadian National Railway Company is a Canadian Class I railway headquartered in Montreal, Quebec. CN's slogan is "North America's Railroad"....

 location of George and 19 kilometres (12 mi) north of the community of Upsala

Upsala, Ontario

Upsala is a geographic township in Thunder Bay District in northwestern Ontario. It is located on the Trans-Canada Highway, Highway 17, 142 km west of Thunder Bay.It was named after the city of Uppsala in Sweden....

, southwest under the Canadian National Railway, the Canadian Pacific Railway

Canadian Pacific Railway

The Canadian Pacific Railway , formerly also known as CP Rail between 1968 and 1996, is a historic Canadian Class I railway founded in 1881 and now operated by Canadian Pacific Railway Limited, which began operations as legal owner in a corporate restructuring in 2001...

 mainline and Ontario Highway 17 to its mouth at the Seine River

Seine River (Ontario)

The Seine River is a river in Kenora, Rainy River and Thunder Bay Districts in northwestern Ontario, Canada. It flows from Lac des Mille Lacs to Rainy Lake....

, 28 kilometres (17 mi) west of Upsala.

Tributaries

• Trewartha Creek (right)
• Beaver River (right)
• Hay River (left)
• East Firesteel River (left)
• North Firesteel River (right)