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Researchers used REMUS autonomous underwater vehicles (AUVs) to capture this three-dimensional side scan sonar image of a previously unknown Lophelia coral reef located 35 miles off the coast of Florida at a depth of approximately 1,500 ft. The surveyed area encompasses approximately 28 square miles. In the center of the image, three coral reefs reaching as high as 120 feet (the three pinnacles in red and yellow) can be seen. Each color in the image represents the height off the sea floor, with the blue colors being the deepest and red the closest to the surface.