Alderney late 300s, at above the island's only natural harbour. The etymology of the island's name is obscure. It is known in Latin as "Riduna" but as with the names of all the Channel Islands in the Roman period there is a degree of confusion. "Riduna" may be the original name of Tatihou, while Alderney is conjectured to be identified with "Sarnia". "Alderney"/"Aurigny" is variously supposed to be a Germanic or Celtic name. It may be a corruption of "Adreni" or "Alrene", which is probably derived from an Old Norse word meaning "island near the coast". Alternatively it may derive from
Calumet Island Calumet Island Calumet Island is an island on the St. Lawrence River, located in the Town of Clayton in Jefferson County, New York. The island formerly featured one of the earliest examples of the large castles built in the Thousand Islands region during the late 19th and early 20th centuries, of which Boldt Castle is a surviving example. New York tobacco tycoon Charles G. Emery, a pioneering developer of the Thousand Islands region during the 1800s, purchased what was then known as Powder Horn Island in 1882. He changed the island's name to "Calumet", a French, colonial-era word often used