What's Hatching Now
Seasonal Chart →
Salmonflies
Pteronarcys californica
Peak
Favorable
Hook: #4-8
Starts ~56°F
The famous Big Hole Salmonfly hatch
| Dries |
Chubby Chernobyl #6-12
Improved Sofa Pillow #4-8
Orange Stimulator #6-10
Sofa Pillow #4-8
|
| Nymphs |
Bitch Creek Nymph #4-6
Kaufmann's Stone #2-6
Pat's Rubber Legs #4-8
|
Golden Stones
Hesperoperla pacifica
Peak
Favorable
Hook: #8-12
Overlaps with Salmonflies
| Dries |
Chubby Chernobyl #6-12
Orange Stimulator #6-10
Yellow Stimulator #10-14
|
| Nymphs |
Pat's Rubber Legs #4-8
Prince Nymph #12-16
|
Yellow Sallies
Isoperla
Hook: #8-16
| Dries |
Yellow Stimulator #10-14
|
| Nymphs |
Montana Jig Sally #14-16
Yellow Sally Nymph #12-16
|
Caddis
Tricoptera
Peak
Hook: #12-16
Starts ~54°F
Mother's Day caddis then steady all summer
| Dries |
CDC Caddis #14-18
Corn Fed Caddis #14-18
Elk Hair Caddis #14-18
X-Caddis #14-18
|
| Nymphs |
Hare's Ear Nymph #12-18
|
Midges
Chironomidae
Favorable
Hook: #18-26
Year-round
| Dries |
Griffith's Gnat #18-22
|
| Nymphs |
Mercury Midge #20-22
Spanish Bullet #16-18
Zebra Midge #18-22
|
Report conditions: 1170 cfs · 55.8°F · ▼ 7.9% 24h · ↓62% median
The Big Hole is fishing well with flows down to 1170 cfs and water temps at a comfortable 55.8°F. Salmonflies are still active throughout the canyon with Golden Stones overlapping - fish big dry patterns early and late in the day when they're most active. When fish get picky on big dries, switch to PMD patterns or drop a Golden Stone nymph #8-10 underneath.
| Conditions | Clear, Stable |
| Nymphing | Golden Stone #8, Pat's Rubber Legs #6, 20 Incher #6, Pheasant Tail #16 |
| Dry Fly | Salmonfly #4, Golden Stone #8, PMD Sparkle Dun #16, Parachute Adams #14 |
| Streamer | Sculpzilla #4, Woolly Bugger #6 |
Based on current conditions and local shop reports · 3d ago
Conditions
At Maiden Rock (Divide)
1h agoClear
| Flow | cfs · 3.72 ft · 60.1°F |
| Trend | ↓69% med · ▼ 6.2% 24h |
| Wx | 52° · 💨 12 NW · 🌧️ 0% · H: 80° / L: 48° |