River lifting fast on the rain. Take your time — read the water before you cast.
Live now
Trends shown where the gauge supports them
Live readings — water temperature is an estimate where the gauge does not record it.
How to fish · for brown trout
When · where · method · kit
Hatches & runs
Twelve months at a glance
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Today's fly · curated pack
6 patterns from this venue's curated pack
Detail · next 12h
The two readings most likely to move the verdict
Evidence
6 factors, signed
Río Ucero · about
Background · character · contributors
A short, picturesque Duero tributary rising at the spring of Ucero and falling through the Cañón del Río Lobos before joining the Duero near El Burgo de Osma. The Ucero combines karst clarity and a dramatic gorge setting with reliable wild brown trout fishing. The middle reaches between Ucero village and El Burgo offer the most accessible water; the gorge itself is partially within the natural park and requires careful access checks.
Río Ucero · directions
Río Ucero · zones
Seasons · zones · per-species rules
Río Ucero · permits
A short, picturesque Duero tributary rising at the spring of Ucero and falling through the Cañón del Río Lobos before joining the Duero near El Burgo de Osma.
River lifting fast on the rain. Take your time — read the water before you cast.
Live readings — water temperature is an estimate where the gauge does not record it.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
A short, picturesque Duero tributary rising at the spring of Ucero and falling through the Cañón del Río Lobos before joining the Duero near El Burgo de Osma. The Ucero combines karst clarity and a dramatic gorge setting with reliable wild brown trout fishing. The middle reaches between Ucero village and El Burgo offer the most accessible water; the gorge itself is partially within the natural park and requires careful access checks.