Ahhh.... the South Fork....
The South Fork is one of the sweetest waters in the west.
Take a trip to Jackson and visit with the folks in High Country Flies, and Jack Dennis Fly shop. They know the river well and can begin your education. Or make friends with some folks who have been fishing the river for years and learn from them.
has a hatch chart for the river. It will help you know what to expect. But most of all, the best thing you can do to learn what flies to use is go fishing as ofetn as possible and work at it. Try lots of patterns for the bugs that should be on the water etc.
Now more specifically, this time last year I was fishing the South Fork and the Stonefly hatches were on. A stimulator pattern size 8 to 10 in orange or green, a large elk hair caddis with a yellow body and red hackle, and a Jake Cabe all caught lots of fish. Drop them right behind large boulders in the river or along the seams by eddie currents and be ready, the cutts are agressive feeders and will nail your fly.
Other good flies for the South Fork are the chernobyl ant, pheasent tails, sonefly nymphs, and royal coachman, alnog with many others.
Remember if you catch any rainbows to keep them, take em home for dinner.
If you want more info email me.
"You can't get there from here."