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Table 4. Brief description of the five bottomland sites selected for demonstration projects in the Colorado and Green river drainages, Colorado and Utah. N Ql River Bottomland Site Reference Comments/Recommendations Colorado River Moab Slough Cooper and Severn 1994a Higher flows are necessaryto inundate the bottomland habitat in Moab Slough. Razorback sucker larvae will also need to be introduced into the site. The area needs to receive seasonal flooding to flush out high concentrations of sah. Significant earthwork may be necessaryto make the area fully functional. ' 29-5/8 Road Gravel Pit Cooperand Severn 1994b This pond could provide important fish habitat. No need to grade the pond bottom; break the dike and create a permanent access, let the pond fill and drain with natural river flows, and let fish move in and out throughout the year. Some periodic maintenance to keep the entrance or connection channel free of sediment may be necessary. Gunnison River Escalante State Wildlife Area Cooper and Sevem 1994c This site has as much potential for restoration as any other she in the Upper Colorado River Basin. It is dynamic and fluvially active, with fully functioning backwaters and oxbows and has areas that can be slightly modified to increase their functioning as bottomland habitat. If selenium in the Gunnison River and all irrigation and tributary flows remains high and it cannot be remediated, this may preclude use of the system in this recovery program. Green River Ouray National Wildlife Refuge Cooper and Severn 1994d Potentially one of the most valuable flood plain ecosystems in the entire Upper Colorado River (Old Charlie Wash) Basin. Extensive bottomland areas occur behind natural and man-made levees adjacent to the main river channel. The greatest potential for re-coupling of the river with the flood plain occurs at the Ouray National Wildlife Refuge. Needs higher flows over a longer duration released from Flaming Gorge Dam. Escalante Ranch area Cooper and Severn 1994e Contains localized concentrations of selenium, particularly In the northern and southern portions of the bottomland area. These areas may have selenium concentrations too high for fish restoration purposes. Channels may need to be constructed in some areas of the wetland to allow high water flushing flows to reduce selenium levels. This flooding may also provide an avenue for larval razorback suckers to enter the wetland.