National Park Service wastewater project underway
U.S. Army Corps of Engineers Nashville District and National Park Service officials review the progress of construction for a wastewater project underway to provide a sanitary upgrade for the National Park Service Blue Heron Mine at the Big South Fork National River and Recreation Area in Stearns, Kentucky. (USACE Photo by Lee Roberts)

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Photo by: Lee Roberts |  VIRIN: 230120-A-EO110-1001.JPG