Range ropes are tools used by cowboys and ranchers to capture and control livestock. RIATAS, REATAS, and LASSOS are all types of range ropes. RIATAS are made from a single length of rope with a loop at one end, while REATAS are made from two lengths of rope that are intertwined and knotted together. LASSOS are made from a single length of rope with a loop at both ends. All three types of range ropes are used to capture and control livestock.