The ORC is defunct. The corp. Infrastructure Ontario is now in charge of the land. Everyone else on this site should email firstname.lastname@example.org to ask for an opening. I did and got the typical 'this site is not available for tours at this time.' Maybe if enough people express interest in the site, we could get it added to Doors Open Barrie!
Fantastic pictures - would this ever be amazing to see the interior - Also a great backdrop for a movie.