This study will investigate minimum streamflow and sediment transport In the Yampa Canyon In northwestern Colorado The historic sediment load will I be analyzed for the period of record for the available gaging station will I be analyzed for the period of record for the available gaging station Monument has been previously proposed by the National Park Service. This study will I examine that hydrograph and test possible alternative minimum stream flow hydrographs. These minimum streamflow hydrographs will be evaluated for their effect on sediment supply to the canyon and sediment transport through the canyon.