One of the first adventures I did with Dyson was called Goblin Gully. When I took over the game with some new players I didn’t have his original map on hand, so I drew my own. It was the first real map I drew that I thought looked good. Real good.
So, here we have a hidden cave complex, originally made by long-dead human rebels. Caves at the rear provide a source of fresh water and the hidden ravine to the East provides a convenient means of escape. I never did draw Level 2, since it was behind an invisible barrier, but someday Goblin Gully will be delved again.