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South Central MN | Up here it would be glacier puke. Imagine taking a bulldozer across one of your farms, topsoil, subsoil, gravel driveway, paved road, and everything else and pushing it into a heap, then covering that with more topsoil and farming it. That is about what it is like up here. The low ground often filled up over the centuries with peat, because stuff didn't decay much while sitting under water the majority of the year. Over time those spots just sort of filled in, the actual post glacial surface could be much further down. I know one of my low spots is peat 10' down. Not sure how deep it goes.
I've got a couple hills that are mostly clay but have some pure gravel pockets in them, easy to find on a dry year. Then add in all the glacial melt water that did some strange things too, just look at the MN river valley, once held a river bigger than the Amazon. | |
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MN corn.
