Inlet of the Gulf of Alaska , southern Alaska, U.S. It lies east of the Kenai Peninsula and spans 90–100 mi (145–160 km).
It was named by the British captain George III . In 1989 one of the largest oil spills in history occurred when the tanker Exxon Valdez ran aground on Bligh Reef and lost 10.9 million gallons of crude oil into the sound, with disastrous effects on its ecology.