Barney's Lake Nature Preserve is located in the north central part of Beaver Island, about three miles southwest of St. James. The 120 acre preserve was donated to the Conservancy by the heirs of Bernard and Margaret O'Donnell. Bernard O'Donnell, great-grand nephew, and Theresa Gacek, great-great-grand niece, were instrumental in carrying out the family's wishes that the land be kept in its natural state and available to the public.

The Preserve encompasses a rich variety of natural habitats. The aquatic habitat moves into an open bog on the souteast tip of the lake, and is bordered by sedge meadows along the beach. The southwestern corner of the preserve is a cedar swamp. The old O'Donnell homestead site is east of the lake across from the boat launching site. The once cleared fields are now a study in plant succession. Stones are piled along the boundaries of what were once fields and pastures.

Wildlife commonly seen in the area include loons, great blue herons, whitetail deer, beaver, and snowshoe hares. Several two-track roads interset the property, providing opportunities for walking.

Directions: From Port of St. James take Kings Hwy. south to Darkeytown Rd.and turn right. Continue about 2 miles and the preserve can be found on both sides of the road. A sign will be visible on the left side.