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 component of their diets. They are less likely to be prey for the North American river otters since they are fast-swimming and can find good escape cover. However, river otters will prey on trout, pike, walleye ("Sander vitreus vitreus"), salmon ("Oncorhynchus" spp.), and other game fish during spawning. Adult North American river otters are capable of consuming of fish per day. A study conducted on captive otters revealed they preferred larger fish, ranging from , more than smaller fish, ranging from , and they had difficulty catching fish species less than or larger than . Otters are known to take