The position of Bull Shoals Lake as the lower lake in a chain of four large reservoirs located on the main stem of the White River in Arkansas and Missouri is described. During the three years of 1961, 1962, and 1963, physical-chemical determinations were made at three sampling stations situated along the channel of the lake. Trout requirements with respect to tempera,ture and dissolved oxygen as reported by other authors in the Southeastern United States are reviewed. Data collected showed that trout could survive year 'round in the vicinity of all stations. Concurrent experimental stocking of tagged rainbow trout, Salmo gairdneir** (Richardson), and tag returns during this study are discussed.