Firth River is a major river in

Yukon, Canada Yukon (; ; formerly called Yukon Territory and also referred to as the Yukon) is the smallest and westernmost of Canada's three territories. It also is the second-least populated province or territory in Canada, with a population of 43,964 as ...

. It begins at the east side of Davidson Mountains and flows into the Beaufort Sea of the

Arctic Ocean The Arctic Ocean is the smallest and shallowest of the world's five major oceans. It spans an area of approximately and is known as the coldest of all the oceans. The International Hydrographic Organization (IHO) recognizes it as an ocean, a ...

, just south of

Herschel Island Herschel Island (french: Île d'Herschel; Inuit languages: ''Qikiqtaruk'') is an island in the Beaufort Sea (part of the Arctic Ocean), which lies off the coast of Yukon in Canada, of which it is administratively a part. It is Yukon's only ...

References

{{Reflist Rivers of North Slope Borough, Alaska Rivers of Alaska Rivers of Yukon