Utah's neighbour (6)
I believe the answer is:
nevada
(Other definitions for nevada that I've seen before include "State of western USA" , "US desert state" , "South-west US state" , "Sagebrush State" , "Southwestern US state" .)
I believe the answer is:
nevada
(Other definitions for nevada that I've seen before include "State of western USA" , "US desert state" , "South-west US state" , "Sagebrush State" , "Southwestern US state" .)