Klein Associates, Inc., has begun full- scale production of the advanced Model 3000 Side Scan Sonar. The all digital, single-beam system is a result of the extensive application of new technologies ...

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 ...