This photo is worth a 1000 words. Look at how shallow the soil is and all the limestone rock the tree roots are growing through. Heavy winds knocked down this living tree early last summer.
I posted the paragraphs below and photo back in 2023:
We live and Farm in the driftless region of Southwest Wisconsin, which means in the last Ice Age the glaciers split and went around us, resulting in a geologically different area than the surrounding land.
Underlying the relatively shallow soils is limestone and is referred to as Karst geology. I don’t fully understand the reason why, but the resulting grass which grows here is incredibly rich and perfect for grass fed cattle. There are a few other areas in the world similar to here, Kentucky , an area in France, probably others I’m not aware of.
Posted by Curiousfarmer 
Curiousfarmer 