The Great Lakes formed where they did 20,000 years ago ... which glaciers later scraped out during the ice age. After the glaciers retreated, their melt filled the lakes, which now hold 21% ...

Data, maps, and reports are available at the lake-level (Great Lakes), for each state, and for the five-state region as a whole by clicking on the links below: Brief reports that summarize, analyze, ...

Lake Erie's devastating lake-effect snow storms can smother communities with collapsed roofs and impassable roads. Could these storms get worse?

Explorers say while this is a golden age, it won't last long. The cold, deep and relative darkness of the Great Lakes have proved to be ideal conditions for preserving shipwrecks dating back to ...

The water levels are expected to begin rising soon, but chances are most lakes won't see water levels above average this season.