Timberline Emerger by Big Y Fly Co.
Designed by Randall Kaufmann to imitate the callibaetis nymph, also effective for dragonfly and damselfly nymphs.
A highly productive lake pattern and searching pattern, ideal for targeting active hatch periods.
Callibaetis hatches are common on many rivers and can be the primary hatch on lakes, making this fly a reliable choice during these times.
| Feature | Detail |
|---|---|
| Imitation Type | Callibaetis nymph, dragonfly, damselfly nymph |
| Best Use | Lake patterns, searching patterns |
| Target Habitat | Rivers and lakes |
FAQ
What kind of fish does the Timberline Emerger attract?
The Timberline Emerger imitates callibaetis nymphs and is effective for trout and other fish that feed on aquatic insects during nymph stages.
Is this fly suitable for both rivers and lakes?
Yes, it works well in both rivers and lakes, especially during callibaetis hatches which are common on lakes.
Can the Timberline Emerger be used during dry seasons?
Please contact customer service

Madeleine Carr –
This fly performs well in lake conditions. I used it during a callibaetis hatch and caught several trout. It’s a solid choice for searching patterns and mimics the nymphs naturally.
Dorothy Chapman –
Felt like a natural match for the nymphs in a stillwater lake. It worked well during a mid-season hatch and helped me get a few good strikes.
Colin Young –
Great for targeting dragonfly and damselfly nymphs too. The action and profile match the real insects well. I’ve used it on multiple lakes and it’s consistently productive.