Milwaukee Deep at (), virtually identical with the "Milwaukee"s reading. The existence of deep water to the Atlantic Ocean side of the Caribbean has been known for more than a century. One of the area's earliest soundings was obtained June 12, 1852 by Lt. S. P. Lee, U.S. Navy brig "Dolphin", with a reading of at (). Milwaukee Deep Milwaukee Deep, also known as The Milwaukee Depth, () is the deepest part of the Atlantic Ocean and is part of the Puerto Rico Trench. It has a maximum depth of at least . It is just north of the coast of Puerto
DeepFlight Super Falcon teamed up to create a submarine that could be piloted by an individual to the deepest part of the ocean. This spot in the Pacific Ocean, called Challenger Deep, is approximately under the ocean's surface and is thought to be the deepest point in the ocean. Together they began to develop the "Challenger" submersible with this goal in mind. However, in 2007 Fossett lost his life in a fatal accident in the Sierra Nevada Mountains of California before the feat could be attempted. The first test flight of the Super Falcon in 2009 ran into a few problems including getting