What is the episode of Scooby Doo where they go to Massachusetts?

There are 2 episodes where the Scooby Doo characters visit Massachusetts:

1. Scooby Doo, Where Are You!: Hassle in the Castle (1969)

The gang visits a medieval castle in Massachussets haunted by the ghost of a Puritan, the Witchdoctor.

2. The New Scooby-Doo Mysteries: The Spirit of Rock-n-Roll (1972)

The gang attends a music festival in Massachussets, which is haunted by the spirit of a dead musician whose body has been encased in ice.