The Downersville or Donnersville State Forest is located in the Town of Russell on the banks of the Grass River, just outside of the Adirondack Park’s Grass River Wild Forest.
It is 1,638 acres, has one roadside campsite along a swampy pond, and several miles of trails to explore the gorge and Grass River. The trails south of Grass River can be difficult to access depending on the water levels (see DEC website for details).