I spent a day at Dinosaur National Monument about 20 years ago, don't know what it's like today, but then it was somewhat overlooked and off the beaten path. Hiked into the back country, didn't see another person all day. Very scenic, interesting geology. I'd like to go back some day.
I'm OK with them on TR - granted it is annoying the week they are there if you want to get out on the lake, but as far as fishing, it got better after they left - it was like they stirred them up.