dingle (DING-guhl) noun: A deep narrow wooded valley; dell. [Of uncertain origin.]*
"But the dingle guards the downpours and holds them fast in its deep mud and root-webs."We have a dingle. It's off Penny Lane. You'll have to come see.
Paul Evans; Country Diary: Into the Wild Woods Wenlock Edge; The Guardian (London, UK); Jul 7, 1999.
*Word-a-day from Anu Garg (words at wordsmith.org)