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shrubs with few Russian olives trees are more prevalent along the banks of the Colorado River. Wetland sites aze generally disturbed due to cattle, ditch maintenance activities, and scouring by the Colorado River. Test pits 5, $;112, 13, 16, 17, lend 20 as documented in the attached data sheets represent wetland (positive data) sites where hydrophytic vegetation is dominant. Vegetation was identified to the species level to the extent possible. The National List of Plant Species That Occur in Wetlands, Intermountain (Region 8) (Reed et. al., l~was referenced to determine the wetland indicator status for each plant. Hydrology Wetland hydrology is primarily driven by active groundwater, precipitation and directly by the Colorado River. Although the Stobaugh Ditch (Area 3) has been abandoned/cut-off due to upstream erosion problems at the diversion point on the Colorado River, the remaining isolated segment of the ditch on the site collects precipitation, ground water and/or seasonal tail water emanating from regional flood irrigation to the north. The ditch is a depression area and provides sustaining hydrology to support wetlands in the bottom and along the banks. Wetland habitat is of very poor quality due to ditch maintenance activities. At the time of the delineation, the ditch was inundated to a depth of 6 inches, saturated in the upper 12 inches of the soil, and had a defined bed and bank ,albeit from artificial dredging. The unnamed drainage (Area 4A) that shows up on USGS mapping as an intermittent stream collects runoff ,return flow from the Lower Cactus Valley Ditch, and precipitation. This drainage is a natural channel that conveys drainage basin and upstream return flows to the Colorado River. Where it meets the middle terrace on the Site, the natural drainage has been channelized (Area 4B) and forms into a stock pond that then flows into the Colorado River. Although this drainage has been modified, it functions to convey any natural drainage of the basin. At the time of the delineation, the ditch was inundated to a depth of 3 inches, saturated in the upper 12 inches of the soil, and had a defined bed and bank. An isolated stock pond (Area 6) is an anoxic pond that was excavated below the water table for the purposes of watering stock. Supporting hydrology is ground water and precipitation. At the time of the field assessment, the pond was inundated to a depth of 12 inches or more and was saturated in the upper 12 inches of the soil around the fringe. An ephemeral wet Swale and upland channel (Area 7) is located west of Area 4B. Area 7 is perched above, but isolated from Area 4B and has a surface connection to the Colorado River. This area was saturated to within 12 inches of the soil surface and is supported by high groundwater or precipitation collecting in a depression. The lower half of the Swale has a defined bed and bank where it conjoins with the Colorado River, is not saturated within 1 finches of the surface, and does not support hydrophytic vegetation. Area 8s wet Swale located east of and roughly parallel to Area 4B through an upland pasture. This Swale is saturated to the surface in its lower reach where it meets with the Area 4B stock pond. The upper part of the Swale is saturated within 16 inches of the soil surface. Area fls influenced by an active groundwater table and precipitation. Soils are moist to wet and exhibit mottling and oxidization.