Odenback is an unincorporated place and former railway point in geographic Deacon Township in the Unorganized South Part of Nipissing District in northeastern

Northeastern Ontario

Northeastern Ontario is the region within the Canadian province of Ontario which lies north and east of Lakes Superior and Huron.Northeastern Ontario consists of the districts of Algoma, Sudbury, Cochrane, Timiskaming, Nipissing and Manitoulin; and the single-tier municipality of Greater...

 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...

. Odenback is located within Algonquin Provincial Park

Algonquin Provincial Park

Algonquin Provincial Park is a provincial park located between Georgian Bay and the Ottawa River in Central Ontario, Canada, mostly within the Unorganized South Part of Nipissing District. Established in 1893, it is the oldest provincial park in Canada. Additions since its creation have increased...

 on Radiant Lake at the confluence of the tributary Little Madawaska River

Little Madawaska River (Ontario)

The Little Madawaska River is a river in the Saint Lawrence River drainage basin in the Unorganized South Part of Nipissing District in northeastern Ontario, Canada...

 with the Petawawa River

Petawawa River

The Petawawa River is a river in the Saint Lawrence River drainage basin in Nipissing District and Renfrew County in eastern and northeastern Ontario, Canada. The river flows from Algonquin Provincial Park to the Ottawa River at the town of Petawawa...

.

It lies on the now abandoned 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"....

 Beachburg Subdivision, a section of track that was originally constructed as the Canadian Northern Railway

Canadian Northern Railway

The Canadian Northern Railway is a historic Canadian transcontinental railway. At its demise in 1923, when it was merged into the Canadian National Railway , the CNoR owned a main line between Quebec City and Vancouver via Ottawa, Winnipeg, and Edmonton.-Manitoba beginnings:CNoR had its start in...

 main line

Main line (railway)

The Mainline or Main line of a railway is a track that is used for through trains or is the principal artery of the system from which branch lines, yards, sidings and spurs are connected....

, between Ancanthus

Acanthus, Ontario

Acanthus is an unincorporated place and former railway point in geographic Deacon Township in the Unorganized South Part of Nipissing District in northeastern Ontario, Canada...

 to the west and Radiant

Radiant, Ontario

Radiant is an unincorporated place and former railway point in geographic Deacon Township in the Unorganized South Part of Nipissing District in northeastern Ontario, Canada...

 to the east; it had a rail siding.