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• DRAFT February25, 1998 delineate the water line of the Green River and this data was tranferred into a Geogrpahic Information System (GIS). From this database, inundated areas were calculated for land ownership classes from Split Mountain to Parieete Draw for all measured discharges. Inundation of public land increased 47 percent and private land inundation increased 84 percent from 20,000 ft3A to 22,000 ft /s. Backwater habitats at low discharge were mapped from aerial photography taken of three locations along the Green River in October 1993 and August 1996. These data were compared similar mapping done in 1987. For a site near Jensen, number and total area of backwater decreased between 1987 and 1993, while the average area per backwater increased. Between 1993 and 1996, the number of backwaters increased but not to the level found in 1987. Total area of backwaters and average size of backwater is greater in 1996 than in 1987. Near Ouray National Wildlife Refuge, number and total area of backwater habitats decreased from 1987 to 1993, increased between 1993 and 1996 but did not reach the • levels recorded for 1987. Average backwater size decreased from 1993 to 1996, but the 1996 average remainded larger than the 1987 data. At a site near Mineral Bottom, the number of backwaters decreased from 1987 to 1993 but the total area and average size of backwater increased. From 1993 to 1996, the number of backwaters increased as did the average backwater size, and total area. Differences in flow at which backwater characteristics were interpreted complicates the analysis at this location. Cooper, D.J, and C. Severn. 1994. Wetlands of the Ouray National Wildlife Refuge, Utah: Hydrology, Water Chemistry, Vegetation, Invertebrate Communities, and Restoration Potential. Report prepared for the Recovery Program for Endangered Fishes of the Upper Colorado. 79p. This report presents the results of original field studies, conducted during 1993, of the physical, chemical and biological characteristics of selected wetlands at the Ouray National Wildlife Refuge near Vernal, Utah. The goals of this study of baseline conditions was to determine how the wetlands function and determine the possibility of using these wetlands for razorback sucker habitat. Surface and ground water levels were recorded at the wetlands studied and compared to stage fluctuations recorded for the Green River. Water levels at Old Charlie Wash closely followed the Green River stage decline from June to September 1993, but water elevation at Wyasket Lake dropped much slower than river • stage. The floodplain forests and bottoms in the Ouray area provide what may be the 17