Previously, in 2001, similar depressions were found at the bottom of Lake Huron, which borders Michigan and Canada. They turned out to be sinkholes. Sinkholes form when groundwater dissolves ...
Figure 2b shows areas of on-land sinkholes and submerged sinkholes around Alpena, Michigan. Here, we focus our discussion on a particular submerged sinkhole located 2 miles offshore in 23 m of ...
Timothy Bechtel has testified in state and federal courts, and his command of the subject has helped to find buried human ...
A remotely operated vehicle helped scientists investigate the 40 newly discovered sinkholes at the bottom of Lake Michigan in ...