| Fond du Lac River | |
| Pushpin Map: | Canada Saskatchewan |
| Pushpin Map Caption: | Location of the mouth of the Fond du Lac River |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Saskatchewan |
| Length: | 277km (172miles) |
| Discharge1 Avg: | 300m3/s |
| Source1: | Wollaston Lake |
| Source1 Coordinates: | 58.4633°N -103.5389°W |
| Source1 Elevation: | 398m (1,306feet) |
| Mouth: | Lake Athabasca |
| Mouth Coordinates: | 59.2722°N -106°W |
| Mouth Elevation: | 213m (699feet) |
| Basin Size: | 66800km2 |
| Tributaries Left: | Waterfound River, Hawkrock River, Cree River |
| Tributaries Right: | Perch River, Porcupine River, Chipman River, Souter River |
| Extra: | [1] [2] |
The Fond du Lac River is one of the upper branches of the Mackenzie River system, draining into the Arctic Ocean, located in northern Saskatchewan, Canada. The river is long, has a watershed of, and its mean discharge is .
The river begins at an elevation of 395m (1,296feet) at Cunning Bay on Wollaston Lake. It flows north to Hatchet Lake at an elevation of 393m (1,289feet) and continues to Waterfound Bay at an elevation of 376m (1,234feet), where the tributary Waterfound River enters from the left. The river continues north to Kosdaw Lake at an elevation of 364m (1,194feet), over the Redbank Falls to Otter Lake, the Manitou Falls, the Brink Rapids and the Brassy Rapids, before the Hawkrock River enters from the left. It continues over the Hawkrock Rapids and the North Rapids and takes in the Perch River from the right. The Fond du Lac River flows further over the Perch Rapids, takes in the Porcupine River from the right, travels over the Burr Falls, and enters Black Lake at an elevation of 276m (906feet).
Several tributaries enter at Black Lake: from the right, the Chipman River and the Souter River; and from the left, the Cree River.
The river leaves the lake on the northwest side near the community of Black Lake, travels over the Elizabeth Falls and the Woodcock Rapids, flows past the community of Stony Rapids, and reaches its mouth at Lake Athabasca.
The river also supports a number of fish species. These include walleye, yellow perch, northern pike, lake trout, Arctic grayling, lake whitefish, cisco, white sucker, longnose sucker and burbot.[3]