The community of Larder Lake (in the eponymous municipal township of Larder Lake) is located on the northwest shore of Spoon Bay, and the communities of Virginiatown and Kearns, both part of municipal McGarry township, are located at the northeast end of Northeast Arm.

Ontario Highway 66 travels in an east-west direction along the north side of the lake, and Ontario Highway 624 travels in a north-south direction along on the west side of the lake.

[6] In 1992, the Ontario Ministry of the Environment fined mining company Deak Resources $50,000 due to polluting effluent discharged into the lake.

[7] In 1994, a study by Environment Canada documented "high concentrates" of nickel, gold, copper, lead and zinc in Larder Lake.

[8] The lake surface is generally frozen from mid-November to late April; however, the period of safe ice circulation is usually from mid-December to mid-April.