States/Provinces Summary
Gila cypha  in Utah, USA
Main ref. (5723). Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. 
Status: native 
Comments: Restricted to the middle river basin of the Green and Colorado rivers (in the Colorado River drainage) (Ref. 5723).