How the Great Lakes formed

I just watched a show on this. It included how Niagra Falls are moving at three feet per year. They talked about the founder of (Western) geography who first measured it. It wasn’t that long ago. It occurred to me that the Natives in the area had noticed this, possibly for thousands of years.

You’d think there is some equivalent on other continents, but since Western science doesn’t ask indigenous people, how do we know what they know?

Which show was that?

This sounds like fun, but can you be more specific.

There are various weird features in that region. I’m going to

Incidentally, do you know about the Fall Line along the East Coast?
Different, sort of.

Fall Line on the East Coast

I live near the “North Coast” :wink:
So we’ve been taught a lot about the local region (that I’ve mostly forgot)

Niagara retreating was re-learnt during one of our mini-vacations to the Falls

Great Lakes formed by glaciers:

  • There is a state park on Kelley’s Island in Lake Erie

No other state park offers visitors a better look at Ohio’s glacial past than Kelleys Island. Evidence of the glaciers, in the form of a large tract of glacial grooves, is available to view, just a short walk from the campground.

(Been there, done that, my family used to own property on the island)

The whole area is still slowly decompressing from the glaciers, and can occasionally trigger earthquakes. - We just had one a few weeks ago. It was only a 2.something…

And there is a fault line in western OH that has hosted quake epicenters.

Geology is another whole fascinating subject if you have the time to dig in.

For the fun of it, here’s one I only learned about last year. It’s further West, “The Driftless Area”, not exactly Great Lakes, but formed during the same period and unique in its own way.

Tucked into the corner where Minnesota, Wisconsin, and Iowa meet there’s a special area with a Quaternary history that sets it apart from the rest of the northern United States.
At the Last Glacial Maximum, the Des Moines lobe lay to the west of this area and the Green Bay lobe lay to the east. But in this area, the land surface was not covered with ice. For this reason, extreme southeastern Minnesota, northeastern Iowa and western Wisconsin together are known as the Driftless Area, because drift is an old name for till, and where there were no glaciers, no till could be deposited. …

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It was the history channel on YouTube. My home internet is down, so I don’t have time to look it up right now.

Well, that’s the thing. I don’t know of examples when Western science asked indigenous people about their knowledge. Anthropologists ask about culture, but not facts. Robin Wall Kimmerrer has a story about testing her ancestors knowledge of harvesting sweet grass, and her struggle to get the experiments approved and funded.

I live a few hours from the driftless area. Winona is a great town. The bluffs are amazing. Perot State park in Wisconsin is nice.

Isn’t that partly due to Academics drift towards superiority complexes and such. Not that different from the lack of women in philosophy.

I’ll bet early scientists, explores asked a lot of questions and were shown many amazing finds, both anthropologic, and geologic, then were promptly forgotten and dismissed after their contributions were plundered.

Being a guy who likes biographies, and the rest of the stories, it can be disappointing indeed reading about some of our greatest heroes. People are people, and it ain’t pretty.

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Speaking of geology:

“Having your nose up against the rocks. There’s no substitute. If you’re interested in the history of this planet, the library is rocks,” said Knoll, who is the Fisher Professor of Natural History at Harvard University.

CNN link