Aneto Normal Route
✓ Verified against the agency · AEMETThe classic ascent of the highest peak in the Pyrenees. La Besurta (1,870m) to Refugio de la Renclusa (2,141m), then a pre-dawn summit push over the Portillón Superior (2,886m) and across the Aneto glacier to Collada de Coronas (3,177m), the exposed Puente de Mahoma knife-edge (3,389m), and the summit. There is no continuous fixed trail above the Portillón — the glacier and scree shift year to year, and route-finding there depends on current conditions, not a marked path.
Safety classification
Summer only, roughly mid-June to September. Early season (snow covering the glacier) the agency directs you via the Portillón Superior; once bare ice appears — 30 Jun in 2022, 5 Jul in 2023 per Montaña Segura's annual advisory — it redirects to the Salterillo variant. Not safe: outside summer, on storm days, or on bare glacier ice without alpine competence; ice axe and crampons are needed almost year-round.
- ▲Aneto glacier: bare ice and crevasses once the snow cover melts (typically late June–July)
- ▲Rockfall in the section below Pico Coronas on the Portillón approach (FAM/GREIM warning)
- ▲Puente de Mahoma: short, very exposed summit ridge at ~3,400 m with severe drops
- ▲Afternoon storms and altitude: ~1,500 m gain, 9+ hour day from La Besurta
Spain's highest Pyrenean summit (3,404 m), MIDE severity 5/5. 'Maintained' means actively managed: La Renclusa ranger post, GREIM presence, annual condition advisories, regulated summer access to La Besurta (shuttle bus) — but there are no waymarks above the Renclusa refuge; navigation is cairns, moraine and glacier. Mandatory: ice axe, crampons and the skill to use them; helmet strongly recommended; mountain boots, not trail shoes. Without proven glacier experience, go with a licensed guide.