Most people don't know that an ancient hidden hotspot created the Great Lakes and that it existed centuries before North America.

North America is home to the Great Lakes—Huron, Ontario, Michigan, Erie, and Superior—spanning the borders of several U.S. states and Canada. These vast freshwater bodies are renowned for ...

North America’s Great Lakes are the largest source of fresh surface water in ... such as the Maumee River in Ohio. This map was created by Erin Aigner for Circle of Blue. Click image to enlarge. This ...

C-Map, a provider of digital marine cartography and cloud-based mapping, has released its first major update to North American charts for 2025. The update ...