1. Before 11:00am, nymphing is probably the way to go (Kaufman Black Stone sz 4-6).
2. After that if you see bugs, but no risers still fish the dry (Improved Sofay Pillow sz 4-6). Salmon flies get more active as the day gets warmer.
3. Remember, this is no regular hatch, the boys will be looking up, because they know one Salmon Fly is equal to about 200 mayflies. So you may or may not see regular risers. If you see very few flies on the surface you won't see risers, but they will still be looking up.
4. Pound the banks. The fish tend to follow the nymphs migrating into shore, and then stick around and munch on adults that fall in the water. It never hurts to fish structure that sticks out of the water. If you see a spot where the water becomes constricted and a bit fast, but is still relatively shallow the fish will be on the bottom looking up for the fast food delivery service above.
5. Your fly does not sit flat on the water? Don't worry, neither do Salmon flies as they are vey clumsy, especially if it windy.
6. The activity slows down after 6:00, but the fish will still be looking. Now is a good time to revisit areas where you either saw or had activity earlier. Those fish are still there looking for the stray salmon fly.
7. I especially like water near shore where you can see there is a shallow area that has a few small riffles (not all the way across the river). The current right below it is usually a bit slow and deeper, and you'll usually find a nice fish.

For more current info on fishing the Colorado near Parshall check with www.fishcolorado.com (they guide this area a lot). We're not affiliated with them , but they're good guys.