I have done the legal research on this issue and detailed that in a post many months ago, and I won't repeat it all here, but ultimately, the use of rivers and lakes under lock and dam is by statute open to public navigation (including fishing)so long as one does not trespass upon the adjacent private land to get there. As for the Captains Quarters, I understand they trenched this out themselves, but nonetheless, they filled the cove with water that belongs to the citizens of this Commonwealth. Does anyone know of a particular case involving the Captains Quarters that has been adjudicated by the Court? If so, please let me know.