which terminates beyond Highwood Pass. Geologically, there does not seem to be much significance to this point at which the range forming the divide changes name. However, topographically there is a change. In the Elk Range to the north the mountains form more of a continuous wall whereas to the south in the High Rock Range the mountains are generally separate entities with passes and cols between them.
The range was named in 1915 because of the rocky character of its mountains compared to the hills near their bases.