The Beaver Brook State Wildlife Area is a 1,964-acre protected property in Washburn County, Wisconsin, managed by the Wisconsin Department of Natural Resources (WDNR) to preserve habitats for its primary Class I brook and brown trout streams, while providing public recreational opportunities such as hiking, hunting, fishing, and cross-country skiing. The area features diverse habitats including northern hardwood forests, wetlands, open fields, and the 17-acre Harrison Lake.

There are over 12 miles of incredible hiking and skiing trails that wind through the Beaver Brook Wildlife Area. Dogs are welcome on a leash and the ski trails are groomed classic. In addition, back-country snowshoeing is also offered in the wildlife area. Remnants of several homesteads can be found on the property and remnants of an old logging dam built in 1870 and removed in 1910 are still visible near the mouth of Beaver Brook. An artesian well is located north of County B (between Highways 53 and 253)