By CBC News Ottawa, July 30, 2017
A former Outaouais quartz mine that became a popular off-the-beaten-path tourist destination has now been blocked off to the public.
Metal barricades now restrict access to the Wallingford-Back mine near Mulgrave-et-Derry, Que., a spokesperson for the office of local MNA Alexandre Iracà told Radio-Canada on Friday. A trench has also been dug five metres from the main entrance to keep vehicles away, they said.
http://www.cbc.ca/news/canada/ottawa/wallingford-back-mine-quebec-blocked-off-1.4226987