Deer Island (Thousand Islands) of the Island" Building Ruins - Outlook Building Ruins - Stone Cottage Ruins - Yale University Skull & Bones Society Lodge - The island is covered in indigenous trees, made up of mostly White Pine, Black Oak, Hemlock, and Sugar Maple — typical of the Canadian Shield — as is much of the surrounding area. There are several abandoned ruins located throughout the island, now overgrown and barely visible beneath the growth. Deer Island (Thousand Islands) Deer Island is one of the American Thousand Islands. It lies between mainland Canada and United States, within the Saint Lawrence River, in the
North American river otter American riverotters are characteristically small or are a type species found in riparian zones. The few occurrences of mammals found in the North American river otter's diet include: muskrats ("Ondatra zibethicus"); meadow voles ("Microtus pennsylvanicus"); eastern cottontails ("Sylvilagus floridanus"); and snowshoe hares ("Lepus americanus"). Records of North American otters preying upon North American beavers ("Castor canadensis") vary; it has been reported in the southern boreal forest of Manitoba. Trappers in Alberta, Canada commonly assert North American river otters are major predators of North American beavers. A 1994 river otter study reported findings of beaver remains in 27 of 1,191 scats