Dell Creek is a warm freshwater stream that lies in northeastern Sauk County and southern Juneau County in central Wisconsin. The area along the stream is hilly with nearby intensive agriculture. Dell Creek is a warm water sport fishery for the lower 1.5 miles and a Class II[1]trout stream for the upper 10.5 miles of its length. The creek is classified as an exceptional resource water. Much of Dell Creek's length in Sauk County is publicly owned.