https://www.wvhistoryonview.org/catalog/053754https://www.wvhistoryonview.org/image/053754.jpgThe Trough, South Branch Potomac River, W. Va. undatedRivers--Potomac.Text on the back reads, "Here the South Branch of the Potomac flows through the Trough. It can best be seen only by boat and is about 2 miles long, just off U. S. 220 in Hardy and Hampshire County, W. Va."West Virginia History OnView