Mackenzie River from the Peace-Athabasca system are significantly slowed by the delta area at the western end of Lake Athabasca causing the lake to rise, and the excess water can only flow out after the rivers have receded. The same phenomenon occurs at Great Slave Lake, which naturally regulates the flow from the Slave River into the Mackenzie. There are river gages at several upstream points along the Mackenzie River. The average flow rate at the outlet of Great Slave Lake is . At Fort Simpson, below the Liard River, it is . At Norman Wells it is , and at the
Lake Yonah Lake Yonah Lake Yonah is a lake on the Tugaloo River, separating Georgia and South Carolina. The lake is created by the Yonah Dam, which is owned and operated by Georgia Power, and generates 22 megawatts. Lake Yonah is a residential lake with seventy-two vacation and permanent homes. After the Tugaloo River flows from Yonah through the lower dam, it continues to Lake Hartwell, and joins the Savannah River, which empties into the Atlantic Ocean. Another tributary to this great river is the Seneca River, which flows into it from South Carolina. Lake Yonah is also a source of fresh