If upwelling starts a month earlier than usual, the amount of oxygen, already low, has to last until the fall when storms promote mixing which adds oxygen back into the system. As of late September this year, upwelling is still occurring and low levels of oxygen are still persisting.
Crews are working to free multiple cars that are trapped by an avalanche on Highway 91 near Copper Mountain, the Colorado State Patrol has confirmed.
Officials worry about the possible transmission of pathogens between domestic sheep and goats and wild thinhorns, an issue which has caused some tension among local farmers.
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