Frederick Sound

Geographical location

The Frederick Sound, also Prince Frederick Sound called, is a strait in the panhandle of the U.S. state of Alaska.

It is located in the Alexander Archipelago and runs between Admiralty Iceland and the mainland in the north and the Kupreanof Island in the south. The Frederick Sound begins in the west at the Chatham Strait in the south east and goes over to the Dry Strait. The Stephens Passage opens at the northernmost point in the sound.

George Vancouver named the Sound 1794 after Frederick Augustus, Duke of York and Albany.

The ferries of the Alaska Marine Highway run in Frederick Sound and run there Petersburg.