This report describes the study of the Rocky Point Canal system in the vicinity of Duchesne and the Grey Mountain-Pleasant Valley Canal system between Duchesne and Myton, in the Uinta Basin, Duchesne County, Utah. The Rocky Point Canal diverts from the left bank of the Duchesne River about 4 mi north of Duchesne. This canal splits into the upper Rocky Point Canal and the lower Rocky Point Canal about 5.2 mi below its head. The Grey Mountain Canal diverts from the right bank of the Duchesne River about 6 mi east of Duchesne. At a point about 7.6 mi below the head, the Pleasant Valley Canal diverts from the right bank of the Grey Mountain Canal.