Specific name for the lake or river surrounding Raven Island (where Crackstone's Crypt is)

I find my writing keeps circling this location for fics and I would really love to know if the body of water is officially named or has a common head-canon name. Is it even a lake or is it a river?

I would name it Lac Corbeau or Corbeau Lake since the area was heavily settled by the French and it would pair well with Raven Island but I would of course prefer the most accurate name.