Farming in Ancient Lake Agassiz
Earth Observatory Science Earth Observatory Farming in Ancient Lake Agassiz Earth Earth Observatory Image of the Day EO Explorer Topics All Topics Atmosphere Land Heat & Radiation Life on Earth Human Dimensions Natural Events Oceans Remote Sensing Technology Snow & Ice Water More Content Collections Global Maps World of Change Articles Notes from the Field Blog Earth Matters Blog Blue Marble: Next Generation EO Kids Mission: Biomes About About Us Subscribe 🛜 RSS Contact Us Search Editor’s Note: Today’s story is the answer to the May Puzzler . About 15,000 years ago, southeastern Manitoba sat beneath tens of meters of frigid water. Lake Agassiz —which once encompassed present-day Lake Manitoba, Lake Winnipeg, and Lake of the Woods—covered an area larger than all of the Great Lakes combined. It formed in front of the retreating Laurentide Ice Sheet , which dammed rivers that otherwise might have drained i...
