I recently decided to start fly fishing and today was my first time on my own (I have gone with a guide before). I thought I would try out Boulder creek because it is fairly close to Denver. I spent more time losing flies in trees and on the bottom and only hooked one fish ( i didn't land it but that was my fault). There was also always someone swimming, throwing rocks, or letting go thier dog play right where the fish were. Does anyone know a good river within an hour of Denver with good fishing and is not lined by thick trees everywhere? I don't care about giant fish, I just want a chance to catch a trout while I slowly improve my bad presentations?.