Jun. 21—The images captured from the lake bottom were surprisingly clear: a piece of aircraft fuselage, painted with black and red stripes, the plane's instrument panel and engines. A mystery that had ...

Modern Humminbird sonar, left, identifies lake depth with a color selection system, while Mega-360 sonar imaging, right, provides a 360-degree view of bottom structure and fish all around the boat.

Researchers used sonar to locate a long-lost shipwreck in Lake Michigan. The steamship Milwaukee was discovered "remarkably intact." The 135-foot ship sank in 1886 after colliding with another boat.

The wreckage of a cargo ship that sank in a storm nearly 133 years ago in Lake Superior off Michigan was discovered using side-scan sonar technology.

As divers continue to use "side-scanning sonar" to search the Hudson River for wreckage from the helicopter crash that killed six people, the National Transportation Safety Board said the aircraft was ...

Today we go to Chattanooga, Tennessee to remove a vehicle we found in the past using side scan sonar. While scuba diving the vehicle, we also found an amazing underwater river treasure. As shutdown ...