This was a 1200 capacity nightclub run in the Masonic Temple building, corner of Yonge St & Davenport Ave, Toronto Canada. It was open in 1968 and only ran for a couple of years as The Rockpile. In 1969 several major bands appeared including then-little-known Led Zepplin. The hall was probably well over capacity on many nights and was a wild, legendary part of the vibrant 60s Toronto music scene.
I love reading about all the different places they played. Nice dates, too. : )