I would recommend the Hants Sno Dusters Clubhouse in Falmouth:
Its only 25-30 mins fro Sackville. Trails are very well marked. Food and gas are available down there.
http://www.snodusters.piczo.com/?cr=6Then you can make it to the Ridge Runners zone.
http://www.snowmobilersavlrr.com/or go to the Crossburn Zone:
http://www.tallships.ca/crossburn/I dont think there is quite enough snow right now in the Fall River-Beaverbank and Rawdon area yet.
There are 3 spots to unload in this trail system. When we get a bit more snow this will be your best bet.
http://www.driftclimbers.org/As far as the Dalhousie Mountain area (nutby), Folly Lake and Sutherlands.
The nearest place woudl be to unload off the 311 Highway past North River where the sled trail crosses the road. I think its up past Sutherlands Road. I unloaded at a place called Jollytown Rd (about 5 mins from North River). The 311 is the highway from Truro to tatamagouche. From this trail system you can go to Kemptown, Earltown, Tatamagouche, Folly Lake and Sutherlands.
Another spot to unload would be in Debery. i have know idea exactly where but I know guys who do it. I sometimes unload 1 mile this side of Folly Lake where the sled trails crosses the highway #4. Old Wentworth Rd. Thsi is about 20 mins from Truro.
I hope this helps.