South Dakota, the Earth, the River

The black loam of southeastern South Dakota, Lakota, Buffalo,
washed to The Big Sioux River, outpourings of rain, early August heat, and humidity,
Iowa, Minnesota converging, Nebraska not far away.
The River knows, has cut through that red rock, removed a century ago for power, and hands that hauled pipe.
The River knows, has seen, as morning converges on noon, escapes to The Great Missouri River,
forming to the Mississippi, mud, and thousands of years from now, the same.