It is interesting how Sioux Quartzite chicken grit (Cherry Stone) is used by so many on this forum around their semps. It is everywhere around here as the outcroppings occur just north of us near Sioux Falls. The seven or so exposed sites stand tall over the landscape as they were the only areas hard enough to resist the glaciers. It was used for cobblestones for a while, lots of buildings are constructed of it, and many of our roads are pink since it is used in their construction. Some of the glacial erratics deposited around our fields can be huge. We do a lot of landscaping with it and can't resist hauling home orphaned reject stones from the quarry when we are up that way.
