U.S. Geological Survey hydrologic technician Mike Michelotti collects water samples from the South Fork Coeur d'Alene River near Pinehurst, Idaho.

U.S. Geological Survey hydrologic technician Mike Michelotti collects water samples from the South Fork Coeur d'Alene River near Pinehurst, Idaho, January 17, 2022. The sample collection is part of ongoing water-quality monitoring in the Coeur d'Alene River basin conducted in cooperation with the U.S. Environmental Protection Agency. (Photo credit: Nick Korzen, U.S. Geological Survey)