There, the Crowe River passes over Marmora Dam, heads southwest into the township of Stirling-Rawdon, passes over two one-metre (3 ft 3 in)-high and -wide falls at Callaghan's Rapids Conservation Area, enters the municipality of Trent Hills in Northumberland County, flows over Allan Mills dam, passes over several falls at Crow Bridge Conservation Area, and reaches its mouth at Crowe Bay on the Trent River, just upstream of the Trent–Severn Waterway Crowe Bay lock and dam. The Trent River flows to the Bay of Quinte on Lake Ontario at Trenton.