I just visited Mt Greylock (highest mountain of Massachusetts).
On the top, there is an illustration of the Ice age cover.
About a kilometer of ice was covering the mountain only just like 12,000 years ago.
The ice was higher than the mountain itself and the veteran monument tower on top would be just buried under the thousands of feet of ice.
There are scratches on the rocks caused by the glacier. Analysis, similar to the Greenland one, was performed there, showing that the ice melted very quickly!
Dinosaur and cow farts did it.
Yup,scratches on the rocks. Don’t know if you’ve ever been to Central Park but most of the “mini mountains” I spoke of have the very same thing. And those scratches,I’ve read,are proof that there was a glacier there.And those glaciers,like most glaciers,have small (and not so small) rocks that they drag along with them and it’s those rocks which cause the scratches.