The might Poudre river.
One excursion from Windsor was to Mishawaka which is infamous for its' concerts. We stopped by to see the raging Poudre river. Here are Val, Susie and I with Nick taking the photo.
We saw lots of rafters and some tubers without any gear. During the week we were in Colorado, there was a news story about a guy who went missing on the Poudre while in an inner tube. He still had not been found when we left.