Trail building
Boy Scouts with Troop 352 of Valley Springs, Calif., help build a trail during National Public Lands Day, Sept. 28, 2013, at New Hogan Lake, the U.S. Army Corps of Engineers Sacramento District park near Valley Springs. (U.S. Army photo by Robert Kidd/Released)

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Photo by: Robert Kidd |  VIRIN: 130928-A-AY634-004.JPG