Slowing demand for frac sand changes the landscape in southeast Minnesota

The Nisbit sand mine
An excavator moves dirt at the Nisbit mining site in Saratoga township Thursday, Nov. 7, 2013. Developer Tom Rowekamp and his partner, Ivie Popplewell, began work at the 19-acre mine in mid-October after committing to numerous county environmental reviews and spending money to meet local and state regulations.