Beaver Brook Wildlife Area is a 1,964-acre property located in south central Washburn County. Beaver Brook is one of the areas premiere Class I brook and brown trout streams, fed along its course by 10 spring ponds and many bank seeps. Beaver Brook flows into the Yellow River on the north end of the property. The mouth of Beaver Brook and a section of Randall Creek are also part of the Beaver Brook property. Seventeen acre Harrison Lake lies in the north end of Beaver Brook and 18-acre Lutz Lake on part of the south end. Numerous wetlands associated with the brook, springs and lakes can be found throughout the property. Red oak stands, aspen, mixed hardwoods, upland and lowland brush, swamp hardwood and conifer, tamarack, pine, old fields and openings make up the other habitats of the wildlife area.

The property blends woods and marsh with tag alder thickets found along the brook. Ruffed Grouse, Woodcock, waterfowl, eagles, American osprey, and furbearers call this place home. This wildlife area is a great place for outdoor enthusiasts to explore. Remnants of old homesteads build in 1870 are still visible at the mouth of Beaver Brook. An artesian well is located north of County B (between 53 and 253).