Cycling the Aragonese Pyrenees: Jaca, Somport, and the Quiet Side of the Mountains

The Aragonese Pyrenees have a geography problem: they sit between two more famous cycling ranges. To the west, the Basque Country — Itzulia, Clásica San Sebastián, and a road cycling culture that runs from village-level clubs to WorldTour contracts. To the east, the Catalan Pyrenees — the Volta a Catalunya, the roads above Andorra, the classic passes that the Tour de France descends into France. Between them, Aragón gets the same mountain range with fewer traffic jams, fewer spectators, and, on weekdays from late April through early October, a quality of riding that is difficult to find anywhere else in southern Europe.

Sabiñánigo is the entry point. The Hoya de Huesca — the broad agricultural valley at the foot of the mountains — extends south from the town toward Zaragoza. North of Sabiñánigo, the river valleys narrow and the gradient steepens. Within 20 kilometres of the town centre, cyclists are already climbing toward cols that reach 1,600 metres of elevation. Within 40 kilometres, they are at the French border.

The Climbs

Puerto de Somport (1,632m). The main road crossing of the Aragonese Pyrenees — the N-330 from Jaca to Pau, France — climbs to the Puerto de Somport through Canfranc. The ascent from Jaca covers approximately 32 kilometres at a consistent 4–5 percent gradient, with the final kilometres above the Canfranc valley ramping to steeper pitches. The top of the pass sits on the Spanish-French border. Descending into France reaches the Aspe Valley and the road toward Oloron-Sainte-Marie — the approach that Tour de France riders use when stages run through this crossing from France into Aragón. The Vuelta a España has used this side of the pass on multiple occasions.

Halfway up the Spanish side stands the Canfranc International Station — an enormous 1928 rail terminal that once connected the French and Spanish rail gauges before service across the border collapsed in the 1970s. The building is in active restoration. From the road, it reads as an incongruous monument: a building scaled for a city sitting in a high valley with almost no permanent population. Cyclists stop here automatically.

Col du Portalet / Puerto del Portalet (1,794m). The less-direct but more spectacular crossing into France. From Biescas — 20 kilometres north of Sabiñánigo — the road climbs the Valle de Tena past the Formigal ski resort and over the pass at the Spanish-French border. The French side descends to Laruns and the road network that includes the Col d'Aubisque. Pyrenean context: the Portalet is the Spanish approach that Tour de France pelotons use when stages include the Aubisque from the Spanish side. The ascent from Biescas is 19 kilometres at around 6 percent average — one of the long, steady climbs that defines Aragonese cycling, with the Formigal resort buildings visible on the upper slopes and the col summit marking the border in open terrain.

Valle de Hecho and Valle de Ansó. Two parallel valleys west of Jaca that push into the mountains toward the French border. Neither carries significant international race traffic and neither has a famous named col at the top — which is precisely why they reward visiting cyclists. The roads are clean, the gradients consistent, and the valley floors deliver stone villages, medieval towers, and beech forests above 1,000 metres in a sequence that continues well past the last fuel station. Both valleys dead-end at the French border, where hiking paths continue but the road does not. You climb up and come back down.

The Hecho valley's approach road passes through the town of Hecho itself — buildings stacked on a hillside above the river — before the road continues into the Parque Natural de los Valles Occidentales. The Ansó valley, parallel to the west, is narrower and quieter. Local cyclists treat it as a known secret.

The Mallos de Riglos approach. Twenty kilometres south of Sabiñánigo, the Mallos de Riglos are volcanic rock towers that rise abruptly from the Hoya de Huesca floor — a geological set piece that marks the transition between mountain and plain. The roads through Riglos and Murillo de Gállego feature in the Vuelta a Aragón, the regional stage race that uses the Hoya's eastern hills. These are flatter than the Pyrenean approaches and provide a change of terrain character for longer days that combine low-valley and mountain riding.

When to Ride

May through October is the practical season for the Pyrenean cols. The Somport and Portalet can carry snow on their summits as late as May and as early as October; check road conditions before planning summit days. June is optimal: passes cleared, light summer traffic on weekdays, temperatures moderate at altitude (8–12°C at the col summits, 20–25°C in the valley towns).

July and August are peak tourism months. The Formigal resort area and the Canfranc approach see increased car traffic. Ride early — before 09:00 — to get the cols largely to yourself. The high country at 1,600+ metres stays cool enough to be pleasant in the mornings even in high summer.

September is the best shoulder month. Heat has passed, traffic drops after the end of school holidays, and the beech forests above 1,000 metres in the Hecho and Ansó valleys begin turning. Conditions on the road surfaces are at their most stable, and the mountain light through September in the Pyrenees is particular.

November through April: the high cols are typically snow-closed. Lower valley roads remain rideable in reasonable weather; the Hoya de Huesca itself is climbable year-round. Confirm pass status with the Spanish road authority (DGT) before any summit attempt outside May–October.

Jaca is the first choice. The city of roughly 13,000 people has a 16th-century citadel, a Romanesque cathedral that is among the oldest in Spain, and a functional tourist infrastructure sized for its role as the Aragonese Pyrenees' main city. From a Jaca hotel, you can be climbing out of the valley within three or four kilometres of the town centre. The road surfaces in and around Jaca are maintained at a standard that matters when descending. Accommodation spans budget pensions to mid-range hotels; there are no luxury alpine resort hotels here on the scale of Les Deux Alpes or Cortina.

Jaca sits directly on the N-330 — the Somport road — so the main col starts from the city outskirts. It also provides easy access east to Sabiñánigo and the Portalet approach, and west toward the Hecho and Ansó valleys.

Sabiñánigo is functional rather than beautiful. It is a market and industrial town, not a tourism destination — which means cheaper accommodation, easy parking, and none of the performance of experience that tourist-oriented towns produce. For cyclists driving in from Zaragoza or Huesca for a training block, it is a practical anchor.

Biescas sits in the Valle de Tena above Sabiñánigo, 10 kilometres closer to the Portalet and Formigal. Small, quiet, and positioned for athletes whose primary target is the Valle de Tena climbs. The accommodation list is short. The access to the Portalet is immediate.

Getting There

Fly into Zaragoza (ZAZ). The most direct option for Sabiñánigo and Jaca. Zaragoza is 120 kilometres south on the A-23 motorway; the drive from the airport takes approximately 90 minutes. Zaragoza connects to Madrid, Barcelona, and a number of European cities. Car rental at the airport is available from all major providers.

Fly into Pamplona (PNA). About 115 kilometres west of Jaca on the N-240. Pamplona to Jaca is a two-hour drive through the Navarran Pyrenees foothills, and the roads on the approach to Jaca from Navarra include their own cycling options — the Puerto de Monrepós and the roads above the Embalse de Yesa.

Fly into Barcelona (BCN or El Prat). Three to four hours by car via the A-2 through Lérida. Viable for athletes combining a Pyrenees cycling trip with a Barcelona city segment. The route west from Barcelona passes through the Catalan Pyrenees, which are separately worth a visit.

By rail from Zaragoza. Regional trains run from Zaragoza Delicias to Sabiñánigo and Jaca on the Canfranc line. Service runs a few times per day; the train is practical for arriving without a car but limits mobility once in the mountains.

What Else to Do

Ordesa y Monte Perdido National Park. A two-hour drive east of Jaca via the A-136 through Biescas and Broto. The canyon of the Río Arazas, the vertical walls of the Ordesa valley floor, and the Monte Perdido massif at 3,355 metres define what the Aragonese Pyrenees look like at their most dramatic. This is a hiking destination — the canyon trail system requires walking, not riding — but it is a compulsory rest-day target for any athlete based in the region.

Thermas de Benasque. The high-altitude spa resort east of Sabiñánigo, in the Benasque valley that climbs toward the Aneto summit (3,404m, the highest point in the Pyrenees). Benasque is a separate valley from the Sabiñánigo corridor and requires a 90-minute drive east, but the combination of altitude running, climbing on limestone sport routes above the valley, and the thermal pool makes it the most complete mountain sports base in the eastern Aragonese range. Beyond the reach of a day trip from Jaca; worth a separate visit.

The Camino de Santiago, Aragonese Route. The pilgrimage road descends from the Somport pass into Jaca and runs west through the Hoya de Huesca toward Pamplona. Cyclists ride segments for the medieval church architecture and the specific quality of moving through a landscape built around movement over centuries. The infrastructure — pilgrim hostels, waymarked trails, stone crosses — is present from the Somport pass all the way into Navarra.

Frequently Asked

How does cycling in Aragón compare to the French Pyrenees? Different character. The French Pyrenees around Pau offer the Tourmalet, Aubisque, and Hautacam — properly mythologised climbs with Tour de France history and corresponding weekend crowds. The Aragonese side has the same range, crossed from the other direction, with fewer spectators, less development, and roads that feel like they belong to whoever rides them on a given Tuesday morning. For athletes who want the climb without the event, Aragón is the better choice.

Are road bike tyres adequate? Yes on the main passes and valley roads. The Somport and Portalet approaches are well-maintained motorable roads throughout the riding season. Secondary roads in the Ansó and Hecho valleys have occasional rough sections; 28mm tyres are more comfortable than 23mm on those segments. The Mallos de Riglos approach roads are smooth.

Is navigation difficult? No. The main routes follow paved roads without significant navigation complexity. Route files for the Somport, Portalet, and the valley roads are available on Komoot, Wikiloc, and Strava. Local cycling clubs in Jaca run Sunday group rides and typically welcome English-speaking visiting cyclists — contact through the Jaca tourist office or local bike shops.

When are the roads busiest? Saturday and Sunday mornings in July and August, particularly on the Somport approach through Canfranc and the Formigal stretch in the Valle de Tena. Weekday mornings at any point in the season are reliably quiet. Holiday weekends (Semana Santa, August 15) are the only times when car traffic on the mountain roads creates a genuine inconvenience for cyclists.

Where can I find training partners in the Aragonese Pyrenees? Connect with cyclists training in the region via Find Athletes near Jaca or Sabiñánigo on ZealZag.

For the Spanish road nationals time trial coverage from today's racing in Sabiñánigo, see our Spanish nationals TT field report.