12pm(now) — Autumn Olive
Peak activity at 4pm — Blue Winged Olive (Blue Winged Olive, 10 food groups active)
Hatch predictions
Supporters see the full sub-surface read.
Start free trial14-day free trial. Cancel anytime.
Backed by regional invertebrate surveys; no sampling on this exact reach yet.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
The Eresma rises in the Sierra de Guadarrama at Valsaín — the upper river through La Granja and into Segovia city is genuine wild-trout water, with strong granite-headwater character and excellent clarity. Lower reaches downstream of Segovia city become more mixed: stocked beats, urban influence, and warmer summer flow mean the Eresma's fly-fishing identity sits firmly in the upper basin around Valsaín / La Granja, not in the broader river.
The Eresma rises in the Sierra de Guadarrama at Valsaín — the upper river through La Granja and into Segovia city is genuine wild-trout water, with strong granite-headwater character and excellent clarity.
12pm(now) — Autumn Olive
Peak activity at 4pm — Blue Winged Olive (Blue Winged Olive, 10 food groups active)
Hatch predictions
Supporters see the full sub-surface read.
Start free trial14-day free trial. Cancel anytime.
Backed by regional invertebrate surveys; no sampling on this exact reach yet.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
The Eresma rises in the Sierra de Guadarrama at Valsaín — the upper river through La Granja and into Segovia city is genuine wild-trout water, with strong granite-headwater character and excellent clarity. Lower reaches downstream of Segovia city become more mixed: stocked beats, urban influence, and warmer summer flow mean the Eresma's fly-fishing identity sits firmly in the upper basin around Valsaín / La Granja, not in the broader river.
Stoneflies
Caddisflies
