The Johnson Brook Trail is located at the Sunkhaze Meadows National Wildlife Refuge, part of the Northern Maine NWR Complex. The trailhead located on the County Road, 8 miles from the downtown Milford. The trail traverses through a mixed hardwood/softwood forest. Over 700' of boardwalk exist on the refuge. In 2015 450' of wooden boardwalk was replaced with an aluminum/recycled plastic boardwalk. The boardwalk allows visitors to explore the forested wetlands that surround Sunkhaze Bog.