"Because the limestone is exposed to the surface, we have things like sinkholes and caves that are accessible to people." ...

Contractors on Wednesday blew up the remnants of a damaged southern Minnesota bridge that almost collapsed last summer after a bout of heavy rain that prompted a federal emergency declaration for the ...

Wary of a new federal administration that seeks more environmental deregulation, several groups are suing the state Agriculture Department and Pollution Control Agency to ensure progress in cleaning ...

Time, water, and geologic forces have converged to create underwater sinkholes where oxygen-poor and sulfur-rich groundwater support prolific microbial mats resembling life on early Earth.