Grindstone Lake

Grindstone Lake is a 533-acre public access lake in Pine County, Minnesota, offering a public boat ramp for kayakers, canoeists, and motorboaters. The ramp is located on an inlet on the north side of the lake, providing convenient water access in a scenic area. The lake's maximum depth of 153 feet supports diverse fish species, including coldwater trout and warmwater bass and northern pike, making it popular with anglers and recreational paddlers alike.

The lake's deep, oxygen-rich waters and substantial size make it suitable for various paddling activities, though boaters should be prepared for deeper water conditions typical of northern Minnesota lakes. Before visiting, contact local authorities or check current conditions, as access improvements and seasonal closures may affect the ramp's availability. The north-side access location is the primary public entry point for the lake.