The range runs for approximately 30 kilometres northeast from the Lammerlaw Range before reaching the Sutton Stream which drains the saddle between it and the southern end of the Rock and Pillar Range and that flows to the east and into the Strath Taieri valley near Sutton Salt Lake, southwest of Middlemarch. The south east flank of the range is drained by Deep Stream a tributary of the Taieri River. The upper reaches of the Taieri River also drain the north western flank of the range. The highest point of the range is towards its south and called Lammermoor at 1,160 m (3,810 ft).[2]