Obispo Norte (20°29'N., 92°12'W.) and Obispo Sur, two dangerous shoals with general depths of 7 to 18m, lie 25 miles S of Triangulo Este and are marked by discolored water. A passage, about l.3 miles wide with a depth of 51m, separates the shoals. Obispo Norte has a depth of 4.5m lying near its N end. A dangerous wreck lies between the two shoals.

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