Horse Show! 1961 or 1962 - Athol, MA?

Here is a 8mm video of a Horse Show back in 1961 or 1962.
Featuring Mimi Gulacsi, #127 Bette Jenks and the rarely captured in pictures or film Helen (Darling) White! Filmed by Howard Briggs.

Unfortunately, not sure where this location is...somewhere in or near Athol, MA? Anyone recognize the area?