Definition of gulch noun from the Oxford Advanced Learner's Dictionary

 

gulch

 noun
noun
BrE BrE//ɡʌltʃ//
 
; NAmE NAmE//ɡʌltʃ//
 
(especially North American English) Mountains and valleys
 
jump to other results
a narrow valley with steep sides, that was formed by a fast stream flowing through it See related entries: Mountains and valleys Word Origin mid 19th cent.: perhaps from dialect gulch ‘to swallow’.
See the Oxford Advanced American Dictionary entry: gulch