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occurring over the long term because on an average basis the amount of sediment transport through the reach was equal to the amount of the sediment supplied to it. Based on the comparison of a survey of the area in 1922 and aerial photos in 1970, Elliott et al. (1984) determined that no significant changes in river planform or channel morphology had occurred beyond those typical of rivers transporting large sediment loads which results in bend migration and bar formation. In addition, it was observed by Elliott et al. (1984) that the river had not developed strath terraces which would suggest progressive down cutting, nor were there any overbank deposits that would indicate aggradation. The Deerlodge Park reach is very active and monitoring channel morphology response to variations in the Little Snake River sediment load would greatly enhance the understanding of relationships between sediment transport and discharge for the two rivers. Over 12 m of lateral channel migration occurred at Deerlodge campground during the 1983 and 1984 high flows and new floodplain development occurred on the north side of the river across from the campground. Sometime between 1976 and 1982, the Little Snake river confluence moved approximately 0.8 km downstream. In 1983, during a fairly high flow year, 21 Yampa Canyon cross sections monitored in the spring and fall, indicated a net storage of sand in the canyon (O'Brien 1984). To summarize, the Little Snake River contributes a large sediment supply to the Yampa River which eventually is delivered to the Green River. Storage of sediment can occur in Deerlodge Park and the dynamics of sediment transport through this reach determines the sediment load to Yampa Canyon. There is limited opportunity for sand storage in Yampa Canyon, but sand deposition on the lower cobble reach can affect habitat used by endangered and native fishes (O'Brien 1984). 27