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areas in the Green River. The top ranked sites were in the Ouray National Wildlife Refuge, the next in the Jensen to Brennan Bottom area, followed by sites downstream of Ouray. The lowest ranked sites were in the Browns Park National Wildlife Refuge area and from Desert Spring and Moon Bottom to the Green and Colorado river confluence. A vast majority (75%) of the bottomland habitat types in the Green River sub-basin were floodplain terraces. Federal agencies own most (750) of the bottomlands in the vicinity of Browns Park National Wildlife Refuge. Forty-two percent of the land between Escalante Ranch and Brennan Bottom was in private ownership.. All of the Ouray National Wildlife Refuge bottomland sites are federally owned. Seventy-one percent of the bottomland sites were on tribal lands between Ouray and Pariette Draw. The majority of bottomland habitat between Desert Spring and the Green and Colorado river confluence is federal land. Unlike the Green River drainage, the top 13 ranked sites in-the Colorado and Gunnison river drainages were scattered among four general areas. Along the Colorado River, there were 10 bottomland habitat sites within the Debeque area, eight sites within the 15-mile reach, and five sites within the 18-mile reach. There were three sites within the vicinity of Delta, Colorado, along the Gunnison River. The top ranked site was the Walter Walker State Wildlife Area in the 18- mile reach. Four other sites in the immediate vicinity ranked 6th and 10th. Johnson Boy's Slough along the Gunnison River ranked 2nd, the Clifton Pond area along the Colorado River ranked 3rd, and the Debeque I-70 Slough ranked 4th. Six other sites immediately downstream of the Debeque I-70 Slough ranked 9th and 11th. Floodplain terraces comprised 37% of the bottomland habitat types, gravel-pit ponds 210, and side channels 200. Of the 110 bottomland sites identified and inventoried along the 241 miles of the Colorado River, 51% or about 6,355 acres (2,572 ha) were in private ownership. Of the 48 bottomland sites along 75 miles of the Gurnison River, 70% or about 2,221 acres (899 ha) were in private ownership. Fifteen percent (1,826 acres [739 ha]) of the ownership was in public (state and federal) ownership along the Colorado River; 22% (697 acres [282 ha]) was in public (state and federal) ownership along the Gunnison River. The greatest amount of bottomland habitat along the Colorado River owned by the federal government (830) was within Canyonlands National Park. The federal government does not own any bottomlands between Rifle and Loma. The federal government owned or controlled only 8 percent of the bottomland habitat along the Gunnison River within a canyon-bound area between Roubideau Creek (rm 50 [rkm 81]) and the Colorado River confluence. Hydrological parameters such as the annual frequency, magnitude, and duration of flooding at a site provide pivotal information that can be used to determine if a site is suitable for enhancement or restoration. This information could be used as an additional selection criterion to screen sites. In 1994, channel cross sections were established where temporary staff gauges had been previously placed at seven bottomland sites adjacent to the Green River and at nine sites adjacent to the Colorado and Gunnison rivers to collect flow and elevation data from May through July. Stage vs. discharge xiv