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SALIDA, CO - JUNE 10: Arkansas River Park Ranger Andrew Maddox fills out a safety checklist before a rafting group heads out on the Arkansas River on June 10, 2016. (Photo by Michael Reaves/The Denver Post via Getty Images)

SALIDA, CO - JUNE 10:  Arkansas River Park Ranger Andrew Maddox fills out a safety checklist before a rafting group heads out on the Arkansas River on June 10, 2016. (Photo by Michael Reaves/The Denver Post via Getty Images)