SGa narrowdeepvalley formed in the past by flowing water, but usually dry now 〔过去由流水冲刷形成,但现在通常已干涸的〕峡谷,沟壑
Examples from the Corpus
gulch• Crawling at a walk up the darkeninggulch, 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.
Origingulch
(1800-1900) Perhaps from gulch“to swallow”((13-19 centuries))