Slot Canyon Atlas

AtlasSierra de Guara - Formiga / Peonera

Peonera Inferior

verified Ungraded High flood risk Bierge, Huesca

The popular jumps-and-pools intro to the Alcanadre canyons. No rope work, fast moving water, a series of pools you swim or float through, exits at a small dam.

Always check each jump from a safe spot before committing; the ropewiki page notes recurring injuries every year. Best to start late morning to let commercial groups clear. 45 min to 1 hr approach on a steep but well-traveled trail.

Logistics

ManagerParque Natural de la Sierra y los CaƱones de Guara
PermitNo permit or registration required for individuals. Group cap 8 persons (excluding guide) per Decreto 204/2014. Minimum 10 minutes between groups. Neoprene mandatory. Jumping off the exit dam is no longer allowed.
Distance2.8
Elevation~394 ft loss
Time4-6 hr
TechnicalAll jumps and toboggans on the Alcanadre. Ropewiki rates 2C III (v2a3 III). No rappels; longest feature is a 33 ft jump. Boulder sections with swims, one feature looks like a siphon but floats under a short dim tunnel. 10 km car shuttle.
SeasonLate spring through late autumn, difficult in June at high flow
Flood riskHigh. The Alcanadre drains a large basin; thunderstorm upstream can spike flow fast.
Vehicle access2WD passenger car
CrowdHeavy Jul-Aug, commercial parties daily, but enough space that there are no bottlenecks
Coordinates42.2197, -0.0875

Sources