44 EXPLORATION OF THE CASfONS OF THE COLORADO. 
Split Mountain Canon is eight miles long. The highest crags on its walls 
reach an altitude above the river of from two thousand five hundred to two 
thousand seven hundred feet. In these canons, cedars only are found on 
the walls. 
The distance by river from the foot of Split Mountain Canon to the 
mouth of the Uinta is sixty-seven miles. The valley through which it runs 
is the home of many antelope, and we have adopted the Indian name, Wori- 
sits Yu-av Antelope Valley. 
