The Hopalong Cassidy Trail is a .5 mi; 0.8 km flat trail on the bank of the Vermilion River in Streator, Illinois. The trail is mostly gravel, with a section of cement next to the Bridge St. bridge on the north and south side of the road. The trail is part of the local flood control system. Its named after the Hopalong Cassidy western series of books written by author Clarence E. Mulford whose childhood house sits next to the trail on the south side of the road.