Topic: geology et al
There is one aspect of the rock business that just occurred to me....a very distant memory. A few of the ladies branched out into shells and coral and they made shell jewelry. It was very popular. I don't imagine it would be now. They made pink roses out of little cup shells with gar fish scales dyed green for the leaves. The centers were yellow or black mustard seeds. They also made earrings out of seahorses and starfish.
I have often said, I am one of the few (although there are several thousand of us) who lives both east and west of the mighty Mississippi River. After it leaves the headwaters at Lake Itasca, it loops around. Springs on this farm feed into the Bungashing which feeds into the Mississippi. So I guess I am living in the Mississippi Watershed area. It is by far the largest drainage basin in Minnesota. There are a couple of othes, Rainy River and the rugged St. Louis River with its waterfalls and rock bluffs. The lakes in Minnesota were formed when the glaciers retreated and are left over from ancient glacial lakes such as Agassiz. Some of the lakes have filled in with peat.
I enjoy reviewing Minnesota's geological history now and then.