This trail is in a State Park, so fees will apply (daily sticker or annual sticker). The park website suggests "area contains open field community and forested areas".
From I-43 just south of Sheboygan, exit at Hwy.V and head east to park entrance. Black River Trail begins at the northwest section of the park
http://www.singletracks.com/item.php?c=1&i=5136