Constructed by dragline in the 1960s, this ditch served fishermen as a marina and safe harbor. Shallow water, strong winds, and big waves made mooring fishing boats difficult, and docking by the campground along the Tamarac River could also be difficult because the river was shallow. Periodic dredging of the river mouth and marking of the channel have been done for many years to maintain safe access for anglers. This side of Highway 72 had a campground until the big storm of 1975, when 50 mph winds and 11 inches of rain flooded it, frightened campers were evacuated in the middle of the night, and the campground was never used again. Evidence of an old campsite may still be found.