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Effects of Jackson Lake Dam on the Snake River and its floodplain, Grand Teton National Park, Wyoming, USA

and 1989 aerial photography and field surveys. Using these data, the AA. determined how vegetation is directly related to the number of years since each portion of the floodplain was last occupied by the channel. The vegetation has changed from a flood

Sediment from hydraulic mining detained by Englebright and small dams in the Yuba basin

of mercury in sediment and fish tissues in the watershed are briefly reviewed. Third, historic data on 20th century hydraulic mining are presented that document numerous small dams built in the Yuba basin to detain mining sediment. Finally, field measurements

Equilibrium or indeterminate ? Where sediment budgets fail : sediment mass balance and adjustment of channel form, Green River downstream from Flaming Gorge Dam, Utah and Colorado

, and field observations. The AA. show that the sediment budget is indeterminate and that this river segment is not degrading, but is, in fact, accumulating sediment. They also show that robust measures of channel change over long reaches better characterize