12pm(now) — Reed Smut
Peak activity at 4pm — Blue Winged Olive (Blue Winged Olive, 12 food groups active)
Hatch predictions
Top nymph shown — see all 2 guilds as a supporter.
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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 Riaza rises in the Sierra de Ayllón and runs through the Segovian highlands. JCyL lists active tramos including Rioseco. The Riaza has real trout water in its upper reaches but is more conditional than the Cega or Eresma, so fishing quality varies noticeably by stretch — check current conditions and permits for the specific tramo before travelling. Best suited to anglers already in Segovia or northern Madrid rather than a dedicated long trip.
The Riaza rises in the Sierra de Ayllón and runs through the Segovian highlands.
12pm(now) — Reed Smut
Peak activity at 4pm — Blue Winged Olive (Blue Winged Olive, 12 food groups active)
Hatch predictions
Top nymph shown — see all 2 guilds as a supporter.
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 Riaza rises in the Sierra de Ayllón and runs through the Segovian highlands. JCyL lists active tramos including Rioseco. The Riaza has real trout water in its upper reaches but is more conditional than the Cega or Eresma, so fishing quality varies noticeably by stretch — check current conditions and permits for the specific tramo before travelling. Best suited to anglers already in Segovia or northern Madrid rather than a dedicated long trip.
Caddisflies
Gammarids
