BIG HOLE’S SALMONFLY HATCH
2018 Hatch Has Begun!
06-07-2018 We are seeing salmonflies on the Big Hole River. The river is swollen, yet receding after a heavy snowmelt. However, the fishing is heating up. A western angler’s favorite hatch, the salmonfly hatch, has begun on the Big Hole.
Big Bugs, Big Fish
These are big bugs so it’s no wonder the river’s larger fish rise to the surface to feed on these big meals. The large stoneflies are clumsy fliers and crash into the water’s surface. Big trout know this and strike shortly after the orange-bellied bugs hit the surface.
Timing is tough with this hatch. Generally, it is mid-June on the Big Hole River. Beginning near the lower river, the hatch moves upstream over the course of 10-18 days. The salmonfly nymph crawls from the river onto nearby willows to hatch leaving behind large, empty shucks. Keeping up with the hatch, if possible, is the best tactic for catching trout on a dry fly. After the hatch has passed, trout are often gorged and not feeding.
Salmonfly Shucks on the Big Hole River
Crawling Salmonfly on the Big Hole River
FLIES TO USE
These are several patterns that are favorites for fishing the salmonfly hatch on the Big Hole and the rivers of Southwest Montana. All have rather interesting names. For the adult salmonfly pattern, there is the Fat Freddie, Madam X, the Water Walker, Kaufman’s Stimulator, the Thing From Uranus, and the Fluttering Stone. With all the crazy name, these flies have a couple things in common. First is color. The underbody of the flies is orange. Fish are looking up and waiting to see one of the poor flying salmonflies crash onto the water. The orange underbelly brings strikes from awaiting trout. Next is the size. Stoneflies are huge! Depending on the fly, fish a size 2-8. Flies are made with foam or deer hair, or both.
But the local favorite is the Cat Puke or Cat Vomit. Who comes up with these names? Unless you are from the Northwest, you probably won’t find the flies in your local shop. No worries, you can find them here locally at Great Divide Outfitters, the Sunrise Fly Shop, or Anderson and Platt. These flies look like a hot mess but the trout love ’em.
Underbelly of an Adult Salmonfly
Cat Vomit aka Cat Puke Flies