Chatham Strait
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Chatham Strait is a narrow passage of the Alexander Archipelago in the southeastern region of the U.S. state of Alaska. It separates Chichagof Island and Baranof Island to its west from Admiralty Island and Kuiu Island on its east.
It is 240 km (150 miles) long and extends southward from the junction of Icy Strait and Lynn Canal to the open sea. The strait is deep and 5-16 km (3–10 miles) wide.