The three major dialect groups of Colorado River are Chemehuevi, Southern Paiute, and
Ute, although there are no strong isoglosses. The threefold division is primarily one of culture rather than strictly linguistic. There are, however, three major phonological distinctions among the dialects: :*In Southern Paiute and Ute, initial has been lost: Chemehuevi 'drink' is a verb, other dialects 'drink'. :*In Ute, nasal-stop clusters have become voiceless geminate stops: Ute 'horse, pet', other dialects . :*In Ute, the mid back round vowel has been fronted to : Ute 'lungs', other dialects . There are no strong isoglosses between Southern Paiute and Ute for the changes but an increasing level of change, as one moves from Kaibab Southern Paiute (0% of nasal-stop clusters have changed) to Southern Ute (100% of nasal-stop clusters have changed). ==Phonology==