Is livestock grazing that occurred on federal lands prior to wild and scenic river designation subject to evaluation during a comprehensive river management planning process?

Yes. River-administering agencies have an affirmative duty to evaluate pre-existing uses on federal lands to determine whether such uses are protecting the values for which the wild and scenic river was designated. Grazing may continue when consistent with protecting river values. If grazing practices are determined to be inconsistent with wild and scenic river management objectives, then changes in grazing practices may be required.