Nut Lake is a lake in the Canadian province of Saskatchewan. It is about south-east of the city of Melfort and north of the town of Kelvington in the RMs of Ponass Lake No. 367 and Kelvington No. 366. Reserves of the Yellow Quill First Nation also border the lake. Nut Lake is the source of the Red Deer River.
Access is from Yellow Quill First Nation Road. The road runs from Highway 756 north along the eastern side of the lake to Highway 349.
Description Nut Lake covers an area of about , is long, and has a shoreline that measures . The western shore borders the RM of Ponass Lake No. 367 while the northern and southern tips of the lake touch the boundaries of the RM of Kelvington No. 366. The eastern shore borders Yellow Quill 90 Indian reserve and small parts Yellow Quill 90-9 reserve border the southern end of the lake. The main band office for the Yellow Quill First Nation is at the end of an arm of the lake in the south-east corner.
Nut Lake is the source of the Red Deer River. The river leaves the lake from the northern end and flows generally eastward into the province of Manitoba and Lake Winnipegosis. Nut Lake has two main inflows, Pipestone Creek and Prairie Butte Creek. Pipestone Creek begins to the south-east near Nut Mountain at the south-western slopes of the Porcupine Hills. Prairie Butte Creek begins to the east at Little Nut Lake. Upstream from Little Nut Lake is Round Lake.
See also List of lakes of Saskatchewan
References