Searching for Shipwrecks and Sinkholes

In spring 2019, researchers came together in Thunder Bay National Marine Sanctuary to seek lost shipwrecks and discover natural features such as sinkholes and fish habitats. Using an autonomous surface vehicle, researchers from the sanctuary, NOAA Great Lakes Environmental Research Lab, Ocean Exploration Trust, and University of New Hampshire’s Center for Coastal and Ocean Mapping used sonar to create high-resolution maps of deep areas within the sanctuary.