Home Camino de Santiago Camino Francés Stage 15 of the French Way: Castrojeriz – Frómista

Castrojeriz
Frómista

24,7km

STAGE DISTANCE

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Hornillos del Camino ❯ Castrojeriz

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Frómista ❯ Carrión de los Condes

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Stage 15 · French way

Information

About this stage

This stage of the French Way of the Way of Santiago connects Castrojeriz, in the province of Burgos, with Frómista, already in the province of Palencia (Castile and León, Spain). It is one of the days that marks the passage from the Burgalese lands to the Tierra de Campos of Palencia, known as “the granary of Spain,” and combines the specific hardship of a climb with the friendliness of a long almost-flat journey.

The stage has an approximate distance of 25 km, with an average duration of about 5 and a half hours of walking, according to sources consulted. The distance can vary slightly depending on the guide: Gronze indicates 24.7 km and other sources speak of 25–25.5 km. It is a stage of moderate difficulty, with accumulated elevation gain of around 200–230 m, concentrated almost entirely at a single point.

The only relevant orographic difficulty is the climb to Alto de Mostelares (also called Teso de Mostelares), right upon leaving Castrojeriz: a short but demanding climb of about 140–150 m elevation gain over about 1.5–1.7 km, with sections of steep gradient. Once past the summit, the rest of the day is practically flat, via long dirt tracks very exposed to the sun, crossing the immense cereal plain.

The main villages of the day are Castrojeriz (departure), Itero de la Vega, Boadilla del Camino, and Frómista (final destination). On the way you cross the Pisuerga River via the Fitero Bridge (or Itero Bridge), which marks the historic border between Burgos and Palencia, and you travel a final section beside the Canal de Castilla, a notable engineering work from the eighteenth century. The general feeling is that of a stage of strong contrast: a demanding start and a long peaceful and meditative development across the plateau, with a final section of great heritage interest in Frómista.

Recommendation from The Way

Recommendation in stage 15: Catrojeriz – Frómista

This stage is accessible except for its initial climb. These are recommendations based on verified information:

  • Approach Mostelares calmly: the climb to Alto de Mostelares arrives very soon, with legs still cold. It is best to take it tranquilly, as the gradient is steep (around 12% in some sections). The subsequent descent, partially cemented, is steep at first; it is best to descend carefully.
  • Have a good breakfast: as this stage is somewhat longer than the previous ones and starts with a climb, it is important to leave Castrojeriz well-breakfasted.
  • Sun exposure: after Mostelares, the route is very open and with little shade. In summer it is important to carry sufficient water, sun protection, and hydrate frequently, avoiding the hours of maximum heat.
  • Supplies: Itero de la Vega and Boadilla del Camino have services (bar, shop, and shelter, according to sources) and are good points to rest and regain strength. It is wise to carry some water for the sections between villages.
  • The Canal de Castilla section: the final kilometers before Frómista run beside the Canal de Castilla, a pleasant and flat stretch. It is one of the most singular sections of the day.
  • For those cycling: the stage is cyclable; the climb to Mostelares can force dismounting and the descent, stony at the start, requires caution. The rest, via flat tracks, is comfortable.
  • Accessibility: several sources warn that the climb to Mostelares, right upon leaving Castrojeriz, is impractical for people with reduced mobility; the rest of the route, due to its surface, also presents difficulties.
  • Time for Frómista: it is worth arriving with time to visit the Church of San Martín, one of the great references of Romanesque architecture on the Way.
Distance and elevation

Stage profile

The route connects Castrojeriz with Frómista over about 25 km, with an estimated duration of about 5 and a half hours of walking, not counting stops.

The profile is very unequal in its distribution. After a flat departure from Castrojeriz and crossing a river by a wooden bridge, the climb to Alto de Mostelares arrives immediately, the only serious effort of the day: about 140–150 m elevation gain over about 1.5 km, with steep gradient. At the top, at about 900–930 m elevation, there is a shrine and a rest area, with broad panoramas of the Tierra de Campos. From there you descend via a stony track, cemented in its first section, and the route becomes practically flat for the rest of the day.

The terrain combines dirt tracks across the plateau, some section beside the road, the crossing of the Pisuerga River via the Fitero Bridge, and a final section via the service road of the Canal de Castilla. As a practical note, except for Mostelares, there is no orographic difficulty: the challenge lies in sun exposure and the length of the flat terrain.

Step-by-step route

Itinerary

Km 0

· Castrojeriz

Departure via Calle Real de Poniente. You leave the village over flat terrain and cross a river (the Odra/Odrilla) via a wooden bridge, before tackling the climb.
Around Km 2–3.6

· Alto de Mostelares

Short and demanding climb to Alto (or Teso) de Mostelares, of about 140–150 m elevation gain. At the summit, a stone shrine and a rest area, with very broad views of the Meseta. The descent begins via stony track, cemented at the start.
Around Km 7.7

· Fuente del Piojo

Already on flat terrain, beside the path, you find the Piojo Fountain, with a rest area. A good point for rest in the middle of the plateau.
Around Km 9–10

· Fitero Bridge and Entry into Palencia

The Way crosses the Pisuerga River via the Fitero Bridge (or Itero Bridge), of medieval origin, which marks the historic border between Burgos and Palencia. Beside the bridge is the hermitage of San Nicolás de Puente Fitero, equipped as a shelter.
Around Km 11

· Itero de la Vega

The first Palencia village of the stage. It has services (bar, shop, and shelter). It preserves the Church of San Pedro, the hermitage of Mercy, and a roll of justice. A good point for resupply.
Around Km 19

· Boadilla del Camino

After a long stretch of cereal plain, you arrive at Boadilla del Camino. It has services and preserves the Church of the Assumption and, beside it, a notable Gothic jurisdictional roll from the fifteenth century. A good place to rest before the final section.
Around Km 21–24
· Canal de Castilla
At the exit from Boadilla, the Way links with the Canal de Castilla and follows its service road for the final kilometers, a flat and pleasant stretch, until crossing the canal beside its locks, already near Frómista.
Final Km (around Km 25)

· Frómista

You enter Frómista beside the locks of the Canal de Castilla. Stage ending in a village of great Jacobean heritage, presided over by the Romanesque church of San Martín.
During the route

What to See

Alto de Mostelares (Teso de Mostelares)

Geographic and landscape milestone of the stage. At its summit, at about 900–930 m elevation, a stone shrine and a viewpoint are preserved with broad panoramas of the Tierra de Campos on both slopes. It is one of the most memorable points of this part of the Way.

Fitero Bridge (or Itero Bridge) over the Pisuerga

A bridge of medieval origin, linked to the time of Alfonso VI, that crosses the Pisuerga River and marks the historic border between Burgos and Palencia. Beside it is the hermitage of San Nicolás de Puente Fitero, rehabilitated as a pilgrim shelter.

Itero de la Vega

A Palencia locality with Jacobean heritage: the Church of San Pedro, the hermitage of Our Lady of Mercy (of Romanesque origin, with Gothic reforms, which preserves an image of Santiago the pilgrim), and a roll of justice, declared a Heritage Asset of Cultural Interest.

Jurisdictional Roll of Boadilla del Camino

A stone column of Gothic style from the fifteenth century, situated beside the church. It symbolized the jurisdictional autonomy of the village, granted by Henry IV and confirmed by the Catholic Monarchs. It is richly decorated with motifs of Jacobean inspiration and is considered one of the most outstanding rolls preserved in Spain.

Church of the Assumption (Boadilla del Camino)

A temple of several naves with a prominent head and an altarpiece from the Renaissance period. It preserves a Romanesque transition-period baptismal font. It rises beside the jurisdictional roll.

Canal de Castilla

A notable work of hydraulic engineering initiated in the eighteenth century, conceived for transport and irrigation. The Way runs beside its course in the final kilometers toward Frómista and crosses the canal beside its locks, an ensemble of great interest.

Church of San Martín de Tours (Frómista)

One of the most emblematic buildings of Romanesque architecture on the Way of Santiago. Built in the eleventh century, it features a floor plan of three naves with barrel vault, semicircular apses, and an octagonal lantern tower over the crossing. Its harmonious proportions and abundant sculptural decoration stand out, with numerous corbels. It is the great monumental reference point of Frómista.
Towns of the stage

Localities

Castrojeriz

Starting point of the stage. A historic village declared a Historic Ensemble, stretched at the foot of a hill crowned by its castle. It offers all services to the pilgrim and rich heritage (Manzano collegiate, churches, and the nearby convent of San Antón).

Itero de la Vega

The first Palencia locality of the stage, in Tierra de Campos, beside the border with Burgos. A small municipality of just over one hundred and fifty inhabitants, with a long Jacobean tradition linked to the nearby bridge over the Pisuerga. It has services for pilgrims (bar, shop, and shelter). It preserves the Church of San Pedro, the hermitage of Mercy, and a roll of justice.

Boadilla del Camino

A small locality with marked Jacobean tradition, as reflected in its very name. It had a pilgrim hospital and maintains a good supply of shelters. Its most outstanding heritage is the Gothic jurisdictional roll, beside the Church of the Assumption. It is the last stop before the final section via the Canal de Castilla.

Frómista

Stage ending. A village closely linked to the Way, with extensive historical heritage and all services for the pilgrim. Its great reference point is the Romanesque Church of San Martín, one of the most complete and well-known Romanesque temples on the route. It also preserves other churches and the locks of the Canal de Castilla. It is one of the cultural milestones of the Tierra de Campos.

Route map

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Stage 14

Hornillos del Camino ❯ Castrojeriz

Stage 16

Frómista ❯ Carrión de los Condes

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