Input (grade 10): From Lake Timiskaming, the river flows southeast to Ottawa and Gatineau, where it tumbles over the ChaudiÃ re Falls and further takes in the Rideau and Gatineau rivers.
Output (grade 6): From Lake Timiskaming the river flows southeast to Ottawa and Gatineau where it tumbles over the ChaudiÃ re Falls. The Rideau and Gatineau Rivers flow into the Ottawa River here.