The MacCallum Wildlife Management Area (MacCallum WMA) covers a large area (906 acres) of woodlands and fields in Westborough and Northborough, between Milk Street (MA-135) on the west and Lyman Street on the east.

To access the trails, use one of the two entrances off Milk Street (MA-135), on the right as you drive north from the center of Westborough:

• Massachusetts Fish and Wildlife Headquarters entrance, at 1 Rabbit Hill Road (take North Drive off MA-135), with a paved parking area; OR
• MA-135 entrance, a short unpaved road on the east (right) side of MA-135 shortly before the Northborough line, with an unpaved parking area.