Famous for its fishing:
     Spring - Bullheads and Steelheads
     Summer - Bass and Northerns
     Fall - Salmon and Browns

Grindstone Creek is a stream fished for salmon and steelhead. Although it is not a tributary to the Salmon River, its confluence with Lake Ontario is just south of the mouth of the Salmon River. Grindstone Creek enters Lake Ontario at the southern edge of Selkirk Shores State Park, and the estuary of the Salmon River borders the north side of the Park.

Grindstone Creek is much smaller than the Salmon River and is slightly larger than Trout and Orwell Brook. Grindstone is stocked with both steelhead and brook trout, and is sometime stocked with chinook. Regardless of its stocking, many salmon and steelhead find their way into this creek.