The 2008 removal of Milltown Dam resulted in base-level lowering of 9 m at the dam site and introduced a pulse of fine reservoir sediment, some of which carried mining-derived contaminants, into a gravel and cobble-bedded river. The location of Milltown Dam at the downstream terminus of the largest Superfund site in the nation and at the confluence of two regionally significant rivers, the Clark Fork and Blackfoot Rivers, Montana, have created substantial challenges and opportunities for dam removal studies. Documentation of the geomorphic effects of this dam removal has included bedload and bed-material sampling, surveys of topographic change, aerial photograph analysis, development of a sediment budget for Milltown reservoir, and [...]