The USS Cyclops was a naval cargo ship of the United States Navy, launched in 1910. It was part of the Naval Overseas Transportation Service during World War I, primarily used to transport coal and supplies. The ship was 542 feet long and could carry a significant amount of cargo. In March 1918, the USS Cyclops disappeared without a trace while sailing from Barbados to Baltimore. Despite extensive search efforts, no wreckage or survivors were ever found. Its mysterious disappearance has led to various theories, including possible Bermuda Triangle involvement, but the true cause remains unknown.