Adverse impacts to riparian/wetland resources arise from surface-disturbing and other activities that increase erosion and sediment loading into surface waterbodies and degrade vegetation health. Major sources of these impacts include mineral resources development, motorized vehicle use, road construction, and wild horse and unsuitable livestock grazing management. Alternative C would result in the greatest projected total surface disturbance, followed by alternatives D, A, and B. Surface disturbance is anticipated to result in proportional levels of erosion and sedimentation, and as such, impacts to riparian/wetland resources are expected to be greatest under Alternative C, the least under Alternative B, and similar under alternatives A and D. Alternative B would result in the greatest direct beneficial impact to riparian/wetland resources by imposing greater restrictions on surface-disturbing activities in proximity to riparian/wetland resources and by instituting more beneficial proactive management actions such as watershed improvement projects, followed by alternatives D, A, and C. Alternative B and alternatives A and D prohibit livestock forage supplements within ½ and ¼ mile of riparian/wetland resources, respectively, to prevent vegetation degradation and soil compaction in these areas; Alternative C does not. Overall, Alternative B would result in the fewest adverse impacts to riparian/wetland resources, followed by alternatives D, A, and C.