Grass River (Manitoba)

Grass River (Muskuskow' Sipi)
Grass River
Country	Canada
Province	Manitoba
Region	Northern Region
Part of	Nelson River drainage basin
Tributaries
- left	Isbister Creek
- right	Metishto River, Wintering River, Pikwitonei River
City	Cranberry Portage, Paint Lake, Kelsey
Source	Cranberry Lakes
- elevation	295 m (968 ft)
- coordinates	54°43′16″N 101°0′3″W / 54.72111°N 101.00083°W / 54.72111; -101.00083
Mouth	Nelson River
- elevation	168 m (551 ft)
- coordinates	56°02′39″N 96°34′22″W / 56.04417°N 96.57278°W / 56.04417; -96.57278Coordinates: 56°02′39″N 96°34′22″W / 56.04417°N 96.57278°W / 56.04417; -96.57278
Length	599 km (372 mi)
Basin	15,400 km2 (5,946 sq mi)
Discharge
- average	100 m3/s (3,531 cu ft/s)
- max	250 m3/s (8,829 cu ft/s)
- min	10 m3/s (353 cu ft/s)
Location of Grass River in Manitoba.

Pikwitonei River

Kelsey

The Grass River is a historically important waterway in the Hudson Bay drainage basin in the Northern Region of Manitoba, Canada. It begins at the Cranberry Lakes approximately 27 kilometres (17 mi) east of Cranberry Portage and runs northeast 500 kilometres (310 mi) to its mouth on the Nelson River. The river was a critical route for earlier European explorers and was part of the "Upper Tract" of the fur trade into Canadian interior.

The headwaters of the Grass River are in Third Cranberry Lake, approximately 27 kilometres (17 mi) east of Cranberry Portage. It then flows north to Elbow Lake, and turns sharply south to Iskwasum Lake after which it continues easterly to Reed Lake. This portion of the river is within Grass River Provincial Park. After Reed Lake, the river enters Tramping Lake, followed by the Wekusko Falls, Wekusko Lake and eastwards to Setting Lake. The river then passes Sasagiu Rapids Provincial Park, and Pisew Falls Provincial Wayside Park. It then enters Paint Lake and the Paint Lake Provincial Park. Continuing in a northeast direction, the Grass River passes through several remote lakes before its confluence with the Nelson River near Kelsey, Manitoba.

The river runs for 599 kilometres (372 mi), and drains a watershed of 15,400 square kilometres (5,900 sq mi).

The remote river flows through the Churchill River Upland portion of the Midwestern Canadian Shield forests and is surrounded by mixed forest with stands of black spruce, white spruce, jack pine, and trembling aspen. The shoreline is characterized by steeply sloping irregular rock ridges and poorly drained areas of muskeg. Typical of the Canadian Shield, the river runs through rolling hilly terrain with abundant glacially scoured rock outcrops.