Beaver Brook Wildlife Area was gazetted with an initial land acquisition of 680 acres from the county government.

Ten further purchases of land from private owenership have increased the acreage significantly, with the additional goal of expanding recreation area.

The wildlife area is bound to the west by the Wild Rivers State Trail, a former railroad track that stretches 104 miles.

There are many notable examples of large aspen and northern hardwood trees in the deciduous habitat, with mainly old growth sections in the natural area enclave.

[8][9] The stream corridor protects patches of old growth northern dry-mesic forests and a number of species of special concern.