If you take a look at a map of Guilford County (where Greensboro lies), you'll see a lot of roads with Mill as part of their names. Just off the top of my head, there is Freeman Mill Road, McKnight Mill Road, Branson Mill Road, Price Mill Road, Davis Mill and so forth and so on. These all got their names way back when there were grist mills near every small farming community.
All these grist mills are gone, but the names still remain on downtown roads and obscure county roads. On our day trip which took us down to the NC Zoo, we took a detour over to Kidds Mill Road near Franklinville about thirty miles south of Greensboro. Here, too, at one time was a local grist mill, but the building itself is long gone. However, still standing is the original stone dam that created the pond for the departed mill race:
And a close up of the hand-placed stones:
And a half buried millstone, the only item still remaining from when it was the center of this small farming community: