Wanting to avoid the 6,000,000 people hammering the Bitterroot right now, I floated Clark Fork for 6 hrs on Saturday (Kelly Island to the take-out past Kona - I never remember the name but it is the one with the burned out bridge). Started out pretty decent with a BWO hatch and had some success with emerger pattern right off the bat but got sloooooow after that. Couple fish on streamers but nothing to write home about and despite our best efforts, zero luck on dries or nymphs after the first 30 minutes. You just never know - that is a finicky river! Maybe I should have sucked it up and made it 6,000,001 on the Bitterroot, but I don't regret spending a beautiful day on the river.