Hello and welcome to the RTA forums !

I can't help with the fishing either, but I would like to highlight what glc has said, it is a 3 day trip and not a 24 hour + trip as a computer would have you believe. They forget that us mere mortals need food and sleep and that we might be subject to delays for traffic congestion or construction.

If you took a little more time for your journey one way, you could head to I 70 and perhaps have a day or 2 in Rocky mountain NP along the way. When we were there last October there were a few fly fisherman along the Bear lake corridor at various lakes, but you would have to check out what permits etc are required through the nps Website.