Gilbert took readings from the lower end of the glacier, and drew upon mineralogist Charles Palache's study of the details of the area. The map shows the bay at high tide; at low tide, Heather ...

A new map released this week gives us a clear view of the continent as if its massive sheet of ice has been removed.

These features shed light on how a colossal ice sheet once moved across the landscape, offering valuable insights into Earth’s glacial history and climate transitions. The findings, published in ...