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How a rainy day and finicky fish launched a Pennsylvania program dedicated to unpaved roads.

Penn State's Center for Dirt and Gravel Studies, founded in 2001, has advised nearly every Pennsylvania county on project to protect waterways from unpaved road runoff.

Dave Pryor stands along a dirt road in Lehigh County, Pa. Pryor organizes dirt and gravel roads races in the state of Pennsylvania.
Dave Pryor stands along a dirt road in Lehigh County, Pa. Pryor organizes dirt and gravel roads races in the state of Pennsylvania.Read moreJOSE F. MORENO / Staff Photographer
    by Jason Nark
    Published