The sable and roan antelopes are distinguished from Oryx by the stout and thickly ringed horns rising vertically from a ridge over the eyes at an obtuse angle to the plane of the lower part of the face, and then sweeping backwards in a bold curve.
The roan antelope is a larger animal, with shorter horns, whose general colour in both sexes is strawberry-roan.
The last-named includes a number of lofty plateaus - the Roan or Book, Uncompahgre, &c., which form the eastern continuation of the high plateaus of Utah - and covers the western quarter of the state.
Many species of antelope are found, mostly in small numbers, including the kudu, hartebeest, the sable and roan antelope, the white tailed and the brindled gnu, waterbuck, red buck, duiker, blesbok, palla, springbuck (numerous), steinbok, grysbok and klipspringer.
Powerful sable and roan antelope roam the forests, while a growing elephant population is becoming more visible.