The Tethul River is a stream flowing through the Fort Smith region of the Northwest Territories, Canada, situated in the remote boreal landscape near the 60th parallel. The river winds through classic northern Canadian wilderness, placing it in proximity to some of the Northwest Territories' most productive fisheries, including the broader drainage systems that feed into Great Slave Lake. Its remote location in the subarctic north means it remains largely off the beaten path, offering a true wilderness fishing experience for anglers willing to make the journey to this corner of Canada.