The highest point within the state is Wheeler Peak, near the centre of the eastern boundary, with an elevation of 13,058 ft.; the lowest points are along the Colorado river, where the altitudes range from 700 to Boo ft.
It lies generally at altitudes between 2000 ft.
Hevea brasiliensis as a rule flourishes to the greatest extent at low altitudes on rich soil capable of retaining moisture.
The passes in the Lower Astin-tagh range from altitudes of 10,150 to 10,700 ft., and in the Upper Astintagh at 11,770 to 15,680 ft.
Its general slope is from north-east, where the culminating point (930 ft.) is found, to south-west, though altitudes exceeding 750 ft.