Smelting is a beloved pastime for many in the Northland, but there’s a threat lurking under the surface of Lake Superior ... contamination has been found in groundwater at 59 closed landfills ...

The Presque Isle River carves through the southwest tip of the Porcupine Mountain Wilderness State Park, leaving dozens of waterfalls in its wake before meeting the shore of Lake Superior.

The wetland system at the mouths of the Kakagon and Bad rivers is so vast it contains nearly half the wetlands on the big lake ... is an important place where groundwater recharges.

The DNR says a fen is a "grassy or shrubby wetland fed by slow-moving groundwater with a buildup of peat." "Because of the extreme rarity of this wetland type along Lake Superior and this fen’s ...

The world’s groundwater aquifers are taking a beating ... there was an idea that Albuquerque was sitting on top of a Lake Superior level of water, and then in the ’90s they found out that ...

Although the Western Reserve was found in Lake Superior, estimates suggest there ... causing surface collapse. Groundwater erosion creates caverns beneath the lake, and ceiling collapses ...

MINNEAPOLIS — Lake Superior is the largest freshwater lake in the world — a sea known for its pristine cold water. But in a warming world, that's changing. Before dawn, a crew boards the Blue ...

For Lake Superior in the Upper Peninsula, the maximum ice coverage begins between the end of February and early March. Here is more on the Great Lakes and ice coverage data. Historically ...