Personally, I don't have a whole lot of information regarding the ''famous'' Bull Pen, but I'd love to know more about its origin and what it truly stands for. So, if you happen to have more information regarding this area in Valcartier, please share! I'm very curious! :)
The only text I've come across so far that mentions the Bull Pen is in Mr. Pat Durocher's account of the Club Castor's history. Here's what he says:
Je me souviens qu'en compagnie de quelques amis on allait après l'ouvrage frapper des balles dans le ''bull-pen.''
-Source: Mr Pat Durocher dans Histoire du Club Castor
In English: Mr. Pat Durocher notes that he used to head off to the Bull Pen to play golf after work.