Argo Merchant oil spill. The ship broke apart and spilled its entire cargo of 7.7 million gallons of No. 6 fuel oil.

Image ID: line5125, NOAA's America's Coastlines Collection
Location: Massachusetts, Nantucket Shoals
Photo Date: 1976 December 21
Credit: Collection of Doug Helton, NOAA/NOS/ORR

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