Sigsbee Deep

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The Sigsbee Deep is the deepest part of the Gulf of Mexico. The actual maximum depth is disputed and estimates range between 3,750 to 4,384 meters. The Sigsbee Deep is a trough that extends more than 300 miles and is often called the "Grand Canyon under the sea." It is located in the southwestern quadrant of the gulf, and was named for Captain Charles Dwight Sigsbee, the captain of the USS Maine, which exploded in the harbor of Havana, Cuba, in 1898. Its closest point to the American coast is 200 miles southeast of Brownsville, Texas.