Investigators with the Environmental Protection Agency say a rollover crash near Arapahoe Basin last week that led to a chemical spill won't cause any long-term harm.
The accident happened early Friday morning near Arapahoe Basin about 75 miles west of Denver.
Officials say a dye for concrete whose main ingredient was iron oxide spilled into the North Fork of the Snake River.
EPA's Mike Zimmerman says about 300 to 400 gallons of the liquid made it into the water, turning it orange for several miles downstream, nearly all the way to Keystone.
He says the Forest Service hasn't received any reports of dead fish from the North Fork.