名詞 gulch:

1. a narrow gorge with a stream running through it
   同義詞：flume

gulch

n.（名詞）
A small ravine, especially one cut by a torrent.
沖溝，激流峽谷：狹小深谷，尤指由激流沖刷而形成

來源：
Perhaps from dialectal gulch [to gush, (of land) to sink in]
可能源自 方言 gulch [涌出，（土地）陷落入]
from Middle English gulchen [to drink greedily, to spew]
源自 中古英語 gulchen [貪婪地，噴出]