Lake Agassiz (/ ˈ æ ɡ ə s i / AG-ə-see) was a large proglacial lake that existed in central North America during the late Pleistocene, fed by meltwater from the retreating Laurentide Ice Sheet at the end of the last glacial period.

Lake Agassiz, largest of the ice-margin lakes that once covered what are now parts of Manitoba, Ontario, and Saskatchewan in Canada and North Dakota and Minnesota in the United States. It was present in the Pleistocene Epoch (approximately 2.6 million to 11,700 years ago) during the last two phases.

Feb 3, 2025 · Geologists later named this Lake Agassiz (AH-ga-see), for the Swiss geologist Louis Agassiz. The lake drained twice: first to the south, to form the channel of the Minnesota River and the Upper ...

Jun 16, 2024 · The remains of the Laurentide Ice Sheet obstructed the drainage of the continent northward into the Hudson Bay, forming a massive reserve of meltwater called Lake Agassiz (a-guh-see). First hypothesized in 1823, the lake was officially named in 1879 after the Swiss-born geologist Louis Agassiz, who is considered the founder of glaciology.

Feb 6, 2006 · Lake Agassiz was the largest glacial lake in North America. It was formed 11 500 years ago in front of the northeastwardly retreating Laurentide Ice Sheet, which acted as a dam. The lake covered much of Manitoba, northwestern Ontario, parts of eastern Saskatchewan and North Dakota, and northwestern Minnesota.

Lake Agassiz was a very large glacial lake in central North America. Fed by glacial meltwater at the end of the last ice age, its area was larger than all of the modern Great Lakes combined. [1] The area that was covered by Lake Agassiz was the geographic center of North America.

Glacial Lake Agassiz is undoubtedly the most significant lacustrine lake-level record from north-central North America. Lake Agassiz was an enormous ice-dammed lake that formed at the southern margin of the Laurentide ice sheet during the last deglaciation.

Largest of the ice-marginal lakes that once covered what are now parts of Manitoba, Ontario, and Saskatchewan in Canada, and North Dakota and Minnesota in the United States.