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
Thousand Islands Bridge corporation, whose seven board members are appointed by the Jefferson County Board of Legislators. Four board members are US citizens and three are Canadian citizens. The Thousand Islands Bridge Authority also maintains and administers Boldt Castle. Tolls are paid only by cash, or with a Commuter Discount Fare Card, which is good for either 16 trips (US$20.00) or 72 trips (US$32.00). No electronic toll collection transponders are currently offered or accepted, although the Bridge Authority has joined the multi-state E-ZPass consortium and was planning to introduce ETC in 2019. The Bridge Authority offers sales of transponders of Florida's SunPass, for