La Rédemption, Quebec
Great little backcountry spot near Rimouski, Quebec. It's just by a small village called La Rédemption, and the hill is called Montagne Saint Pierre. There are PDFs online at https://lesgrimpeursdelest.files.wordpress.com/2009/11/montagne-st-pierre-cartes-ski.pdf and at a few other websites with all the info.
I found out about this place from locals at the Gaspesie National Park. It's a great hill with four gladed tree runs setup. They range from the real mellow to nice and steep powder in the trees. It's about a 1 hour skin from the road to your first line and then about 40 minute laps. Cool little place and no crowds.
Drop in at the Municipal town hall and let them know what you think. Super friendly townfolk! They are looking for funding to develop the sport in the area.