Canada is home to many significant rivers that play a crucial role in its geography and ecology. The Mackenzie River is the longest river in Canada, flowing through the Northwest Territories and emptying into the Arctic Ocean. Other notable rivers include the St. Lawrence River, which connects the Great Lakes to the Atlantic Ocean, and the Fraser River, known for its salmon runs and stunning landscapes in British Columbia. These rivers are vital for transportation, recreation, and wildlife habitats. They support diverse ecosystems and provide water resources for communities. Additionally, rivers like the Ottawa River and Saskatchewan River are important for hydroelectric power generation, contributing to Canada's energy needs.