Boats of the Mackenzie River watershed carrier business in 1947. The last steam-propelled sternwheelers, the "S.S. Distributor" and "S.S. Mackenzie" were retired around the same time. In later years, with the construction of the Mackenzie Highway from Alberta to Great Slave Lake, the importance of the Athabasca-Slave River route dwindled and NTCL operations were based from shipyards in Hay River after 1959. NTCL became the primary water operator in the Mackenzie River watershed with the purchase of Hudson's Bay Company's fleet and equipment in 1958, and the total buyout of Yellowknife Transportation Company in 1965 including its fleet of diesel tug boats. Other small commercial operators
Puelo Lake Puelo Lake Lake Puelo () is a lake located in the northern part of Chubut Province, in Argentine Patagonia. Of fluvial-glacial origin, its deepest point is some 180 meters below the water level. The narrow L-shaped lake is surrounded by Lago Puelo National Park. The lake is fed by the small rivers, "Azul" and "Quemquemtreu". The outflow from Puelo Lake is the Puelo River which flows to the Pacific Ocean through Chile. The river emerges from the lake at the border with Chile, flows through a narrow turbulent passage called Arroyo los Hitos about long and into Lake Puelo Inferior