Lake Bouteroue's surface is usually frozen from early November to mid-May, however, safe ice movement is generally from mid-November to mid-April.
Geography
On the east side of Rohault Lake, the lake Bouteroue has a length of 16.9 kilometres (10.5mi), a maximum width of 2.2 kilometres (1.4mi) and a maximum of altitude of 402 metres (1,319ft). The outline of the lake has a complex shape with five parts:
the northern part of about twenty islands, which receives the waters of Rohault Lake and has a bay to the northeast;
that part of the east which forms a U-shaped bay (open to the north) with a length of 3.7 kilometres (2.3mi);
that part of the West with a peninsula of 2.2 kilometres (1.4mi) oriented towards the South which gives it the shape of a U (open to the North), receiving the dumps of Lake Madeira, Djebel, Ribemont and Mayac; and also receiving the current coming from the North;
the central part of a length of 7.1 kilometres (4.4mi) (North-South axis) receiving the waters of the Pertain, Ivors and Rhea lakes;
the southern part of a length of 7.6 kilometres (4.7mi) in the form of a double hook (one North hook is the "Bay of Wisdom" and the other hook, the bay of the mouth of the lake ), receiving the discharge from Finbar Lake.
The mouth of lake Bouteroue is located at:
5.7 kilometres (3.5mi) south of the mouth of Bouteroue Creek (confluence with the Normandin River);