Stinking Creek Road leads unremarkably to Stinking Creek in Kentucky, USA, which hasn’t smelt bad for over 200 years give or take pollution. The problem started in the winter of 1779-1780 when there was a big freeze, and large herds of elk died around the creek where they had taken shelter.
That spring was really horrid when the thaw came, with even turkey buzzards looking for clothes pegs for their noses. The place ponged for several decades, after which things went back to normal. It’s actually a pretty place to visit.