It is located on a huge hill.
A Pup Named Scooby-Doo
The gang made a trip to Knittingham Puppy Farm for the Doo puppies' birthdays. When they got there, Mumsy and Dada Doo gave Scooby a "lame" collar, which was worth a lot of money, and he was forced to wear it. But the collar was wanted by the Ghost of Buster McMuttMauler, which ended up chasing the kids down in search of Scooby's new collar. (Curse of the Collar)