Computed daily metallic-contaminant concentrations and loads on the Clark Fork River at USGS streamgages 12324200 and 12324400 near Grant-Kohrs Ranch National Historic Site in southwestern Montana, Water Years 2019-20
In 2019, the U.S. Geological Survey (USGS), in cooperation with the National Park Service, initiated a study using surrogate technology to predict real-time metallic-contaminant concentrations (MCCs) in the Clark Fork at two USGS streamgages that bracket Grant-Kohrs Ranch National Historic Site (GRKO) near Deer Lodge, …