Creek Drying, Fish Dieoffs Reported Montana, Pennsylvania, Canada

Multiple water bodies across the U.S. and Canada are experiencing environmental stress leading to fish die-offs. In Montana, Lolo Creek has run dry past the Highway 93 bridge, resulting in massive fish deaths and threatening trout populations in the Bitterroot River, as rising temperatures and low water flows limit their refuge options. In Nelson, emergency repairs to the city's main water intake caused Anderson Creek to run dry temporarily, killing fish due to insufficient water flow amid early snowmelt and high consumption. Meanwhile, in Delaware County, Pennsylvania, dozens of dead fish were found in Chester Creek, prompting investigations that identified a chlorine-based spill, with emergency teams blocking water flow and assessing environmental impacts. Authorities in both locations are actively investigating and implementing measures to mitigate further ecological damage while monitoring water quality. These incidents highlight the combined effects of natural conditions and human interventions on freshwater ecosystems.