12 Uhr(now) — Eastern Blue-Winged Olive
Peak activity at 12 Uhr — Eastern Blue-Winged Olive (Eastern Blue-Winged Olive, Peak emergence window)
Hatch predictions
Supporters see the full sub-surface read.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 2 as a supporter.
Start free trial14-day free trial. Cancel anytime.
Based on species-occurrence records, not local invertebrate surveys.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
- MN DNR — verify season dates and regulations.

Hay Creek, Goodhue County, Minnesota Terrain map
The full read · show the working · for Brown Trout · confidence 90%
- Trout January 1 (winter catch-and-release) → September 30 (harvest from mid-April)
Hay Creek

12 Uhr(now) — Eastern Blue-Winged Olive
Peak activity at 12 Uhr — Eastern Blue-Winged Olive (Eastern Blue-Winged Olive, Peak emergence window)
Hatch predictions
Supporters see the full sub-surface read.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 2 as a supporter.
Start free trial14-day free trial. Cancel anytime.
Based on species-occurrence records, not local invertebrate surveys.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
- MN DNR — verify season dates and regulations.

Hay Creek, Goodhue County, Minnesota Terrain map
The full read · show the working · for Brown Trout · confidence 90%
- Trout January 1 (winter catch-and-release) → September 30 (harvest from mid-April)