MISSOULA, Mont. — Right now rivers are high, muddy and dangerous, so NBC Montana ventured to a Montana creek. The Blackfoot River's water levels are high and murky, but NBC Montana chose a small ...

Warming temperatures are causing a steady rise in copper, zinc and sulfate in the waters of Colorado mountain streams affected by acid rock drainage. Concentrations of these metals have roughly ...

Getting your Trinity Audio player ready... Warming temperatures will sap more water out of the Colorado River — and many other waterways fed by mountain streams — as groundwater is depleted over the ...

Iron oxides stain the bed of Upper East Mancos River in southwestern Colorado, an alpine stream affected by acid rock drainage. Concentrations of zinc, copper and sulfate have doubled in the last ...