Montage d'Argent (Silver Mountain) is a great Rock and Ice climbing spot. Is has been developed since 1990, the first climbs were done in early 1950 (some old pitons). It is the most important climbing area in the Laurentides for the pas few years. The overall climbing is about 5.10 and is full equipped with sport routes (+100) and trad routes (+100). Most of the climbs are well protected and has belay stations, making is affordable for most climbers. Classic routes are : Boeing S 5.9+, Arete des Urubus T 5.10+, Spooky S 5.10b, Rav 4 S 5.10a, M&M T 5.9, Coeur Vaillant T 5.10b, and lots more. Some nice Ice climbing in the winter also, Voie Du Bucheron 3+, Edelweiss 3+ and more.
Follow the 15 route form Montreal and get to St-Jovite (all facilities are there). There is an Outpost, Bunkhouse and camping area right on the spot, toilets (3), rescue gear (2) and lost of fun.
The Montagne d'Argent offers a season pass about (25$ Can) or you need to pay a day fee.
Summer : May to October Winter : November to April
Directly on the spot or in one of the camping sites in the area.
Check out (local Website) : http://www.montagnedargent.com/ (Weather) : http://www.meteomedia.com/Meteo/Villes/Can/Pages/CAQC0615.htm
Here are some of the topos you can find at local stores in Montreal.