I have answered a post from someone looking for Gillis Mountain.
Anyone who wants to go off the beaten path in both Nova Scotia and Cape Breton Island should try to get a copy of The Nova Scotia Atlas. It is available at any good book store in the province. It will show you all secondary roads and place names of the tiniest hamlets. The widely available tourist map is ok, only for the main routes. If you have a few extra days there is so much more to see on Cape Breton than the Cabot Trail, Baddeck and Sydney.