We start getting catchable numbers of fish in the lewiston area by late July. In Aug, Sept, Oct you can have some banner days between lewiston and Orofino. Earlier in the summer fish close to lewiston, as the season progresses the fish can be found further and further up the system but thats not to say you wont find fish low in the system as well. Typically the A-runs show up first and then the B-runs show up a little later. These are summer run fish so the later you choose to fish the more bootical the fish are going to be.