Successful rappel
Coralie Wilhite, a geological engineer for the U.S. Army Corps of Engineers Sacramento District, gives the thumbs up after rappelling down a rock face along the bank of the American River near Folsom Dam to mark rock bolt anchor locations as part of the Joint Federal Project.

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Photo by: Coralie Wilhite |  VIRIN: 160615-A-ZZ999-707.JPG