I believe that these Alligator boats were used in both Ontario and Quebec. I have seen only one pic of the type that was used where I vacation in Haliburton County. It didn't have anything on deck but the boiler and the mechanicals to turn the side wheels.
They started logging the area for white and red pine in the 1800's. It was logged out by 1920's and from pics I've seen, looked like a moonscape. It's heavily forested now with a mix of birch, ash, maple, red oak, poplar, aspen, cedar, whjte and red pine. The lakes are littered with logs that sank back then.
Alligator boats (small side-wheelers) hauled booms of up to 60,000 logs, and could crawl across bogs from one lake to another. They were flat-bottomed scows, and they carried about a mile of cable on board, which they used to pull themselves over land by winding up a cable anchored to a point some distance away. A steam side-wheeler, the Beaver, was on Baptiste Lake since at least 1917, when Sam Baptiste was the captain