As Harmon Maher walked along the Keystone Trail in central Omaha one morning in February, he spotted something odd: The creek next to the path, normally a gray-green color, ran bright orange.
It was full of sediment, probably from some construction upstream, the retired geology professor reasoned. Maher didn’t think much of it until hours later when his son alerted him to a mishap that was quickly becoming the talk of the town.
