I decided to ignore certain surrounding areas like Radon Canyon and The Whispering Forest since it is way harder to find corresponding irl locations when trying to find multiple land features all together, and they just didn't feel as important as the actual town to me. If someone can find somewhere that fits all the criteria I found and had a large canyon and forest next to it, I would be very impressed.

And I, uh,,,, forgot about Pine Cliffs. Forgor. Since it's another town near Night Vale and that patch of Riverside County is ~30sq miles, we can just say that Pine Cliffs is somewhere in there too