From Longman Dictionary of Contemporary Englishgulchgulch /ɡʌltʃ/ noun [countable] American English  SGa narrow deep valley formed in the past by flowing water, but usually dry now
                                                    
                                                Examples from the Corpus
gulch• Crawling at a walk up the darkening gulch, they ate.• We followed down along the dry gulch, and what we saw was terrible.• The soldiers had followed along the gulch, as they ran, and murdered them in there.• She forgot the excitement down below, she forgot the misunderstanding that had kept them silent down the gulch.• It's a long way down into the gulch.Origin gulch (1800-1900) Perhaps from gulch “to swallow” ((13-19 centuries)) 
