Posted inSeptember 17, 2012: Pallids in Purgatory

Grand Canyon floods and native fish

The last time the Colorado River plunged unhindered through the Grand Canyon, swollen by snowmelt to 126,000 cubic-feet per second, was in 1957. Glen Canyon Dam rose soon after, delivering cheap hydropower and reliable water to cities, farms and industry. For native fish, the transformation was debilitating. Most of the river’s sediment — which built […]

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