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This photo shows watershed damage in the Grass Valley Creek basin which was leading to increased erosion. This problem has been solved through a combination of education and law enforcement. Photo courtesy of the Trinity RCD. May 1991.


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Signs being installed about restrictions on off road vehicle use in the Grass Valley Creek watershed passed by the Trinity County Board of Supervisors to prevent erosion on decomposed granitic terrain. The prohibition actually began to work after stepped up law enforcement. Photo courtesy of the Trinity RCD. June 1991.