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 ...

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.

FLATHEAD LAKE - Searchers using a specialized sonar device and robotic underwater cameras Tuesday found fragments from a military aircraft that crashed into Flathead Lake on March 21, 1960.