Route of the Black Villages: 9 Slate Hamlets You Will Not Forget

Slate does not shine the same at every hour. In mid-morning, when the sun falls at a slant on the roofs of the Sierra Norte de Guadalajara, the slabs give back a silvery, almost metallic reflection that betrays the quartz trapped in the rock. That glint is the first lesson of the route of the black villages.

These hamlets hide on the southern slope of the Sierra de Ayllón, inside the Sierra Norte de Guadalajara Natural Park. They are an extraordinary example of vernacular architecture: houses, hay barns and corrals built with what the mountain provided, with hardly any lime or fired tile.

The result is an almost monochrome human landscape. Walls of dark slabs, oak eaves, cobbled streets that run down towards the streams and a persistent smell of rockrose and oak firewood in the chimneys.

(And yes, it is worth devoting at least a full weekend to it: in a rush, the slate tells you nothing).

To read these villages well you have to go beyond the postcard. Every lintel, every interlocked corner and every conical chimney is a document of a subsistence economy that lasted centuries and went out almost suddenly in the 20th century.

Why the villages are black: geology and survival

The explanation starts underfoot. The massif crowned by the Pico Ocejón, at 2,048 metres, is part of a basement of very ancient metamorphic rocks, dominated by slates and quartzites.

In a territory like this, laminated stone was everywhere. It was pulled out in slabs, carried by pack animals and placed almost untrimmed. What was lacking, by contrast, was good clay for firing tiles, and lime was expensive and scarce.

From that equation a building system of its own was born. Walls were raised dry or bonded with mud, clay and straw. Their thickness insulated against the cold and kept the warmth of the hearth through the long winters of the sierra.

Roofs rested on oak and pine beams. Over them were laid heavy slate slabs, able to bear the weight of snow season after season.

Key to reading the terrain: look at the openings. The windows are small and few, and usually face south. Every opening was a loss of heat, and the design minimised it.

A heritage saved by abandonment

These hamlets lived for centuries from livestock and a very hard mountain agriculture. Their history is bound up with transhumance and with the old Castilian communities of town and land (comunidades de villa y tierra).

In the mid-20th century emigration emptied many of these villages. The paradox is well known: with no money to renovate, the houses were not transformed. Today the district works as an open-air museum of vernacular architecture.

How the route of the black villages is organised

The classic route starts at Tamajón, reached from Guadalajara by going up through Humanes. A few kilometres later the road forks and the route splits into two branches.

• Western branch: Majaelrayo, Campillo de Ranas and its dependent hamlets, such as Roblelacasa.
• Eastern branch: Almiruete, Palancares and Valverde de los Arroyos.

Between the two rises the bulk of the Ocejón, which acts as the axis of the journey. With two days you cover both sides without rushing, and with three you can add a long walk.

1 Tamajón, the limestone gateway

Tamajón is not yet a black village, and that is precisely why it is worth starting here. It is the point where the limestone of the countryside gives way to the slate of the sierra.

In the town centre stands the Church of Nuestra Señora de la Asunción, usually dated to the 16th century. It dominates the entrance to the village with its mass of pale stone, very different from what you will find higher up.

About two kilometres to the north is the Hermitage of the Virgen de los Enebrales, also from the 16th century and enlarged in the 18th. It is the shrine of the patron saint, and every year the image goes up in a pilgrimage procession from the parish church.

Beside the hermitage stretches the Ciudad Encantada de Tamajón (Enchanted City). Water has shaped the limestone into towers, arches and small caves, a karst landscape that contrasts head-on with the dark slabs of the mountain villages.

2 Bonaval Monastery, the Cistercians beside the Jarama

Before climbing into the sierra it is worth detouring towards Retiendas. Beside the Jarama river, among riverside vegetation, appear the ruins of the monastery of Santa María de Bonaval.

It was founded by King Alfonso VIII of Castile in 1164 for monks of the Cistercian Order. It is one of the first Cistercian monasteries in what is now Castilla-La Mancha.

The fabric we see dates from the early 13th century. Mostly preserved are the triple-apse east end, the transept, the south aisle and an attached sacristy.

The narrow windows, edged with zigzag and diamond-point moulding, are pure Cistercian grammar: sobriety in the volumes, restrained decoration at the edges.

The ruins have been the subject of consolidation works by the regional government (Junta de Comunidades). Before going, check the access conditions with the Retiendas Town Hall or on the regional tourism website.

3 Majaelrayo, the great base for the Ocejón

On the western branch, at the foot of the west slope of the Ocejón, lies Majaelrayo. It is one of the essential stops for understanding the pastoral life of the sierra.

Its houses show walls of slabs laid horizontally, with minimal openings and wooden eaves. The fountains and stone drinking troughs speak of a village that revolved around livestock.

Wandering aimlessly through its lanes lets you compare solutions from one house to another: corners interlocked with long slabs, overhanging wooden eaves and doors weathered by decades of snow and sun.

Majaelrayo is also the most usual starting point for climbing the Pico Ocejón.

Climbing the Ocejón: the round trip from Majaelrayo is about 13-14 kilometres with close to 940 metres of cumulative ascent, 4.5 to 5 hours. Set out early: on the summit the wind is usually strong and the weather changes quickly.

4 Campillo de Ranas and its two-tone tower

Very close by is Campillo de Ranas, head of a municipality that brings together some of the best examples of black architecture in the district, both in the village and in its dependent hamlets.

Its cluster of houses stands out for the uniformity of the dark slabs and for the oak framing in lintels and balconies.

The great landmark is the Church of Santa María Magdalena, with roots in the 13th century. Its tower, slender and visible from the whole valley, combines black slate with limestone ashlars, a play of colours unusual in the area.

From the square, the crest of the Ocejón closes off the horizon. If you have a camera, the light of the last hour of the afternoon brings out the relief of each slab.

5 Roblelacasa and the Pozos del Aljibe

Roblelacasa is a dependent hamlet of Campillo de Ranas. Small, silent and with unpaved streets, it preserves the structure of a livestock settlement: corrals, threshing floors and dry-stone walls.

From here starts one of the most popular trails in the sierra, the one that goes down to the Pozos del Aljibe. The linear version is about 6.7 kilometres round trip, in about two and a half to three hours.

The path descends towards the Jarama, crosses the stream by a wooden bridge and ends at a group of waterfalls that have dug deep pools in the dark rock.

Caution near the pools: the trail runs beside drops and wet rock is very slippery. Wear shoes with a good sole and do not go near the edge.

6 Umbralejo, the rebuilt village

In the municipality of La Huerce lies Umbralejo, the most singular stop on the route. Its residents abandoned it in 1971, after ICONA expropriated houses and land.

Since 1984 it has been part of the Programme for the Recovery of Abandoned Villages, promoted by several ministries. Today it hosts educational activities and summer camps, with no residents or shops.

Walking through it lets you see together the pieces of a mountain village: dwellings, hay barns, ovens and corrals.

That said, some scholars of vernacular architecture point out that the reconstruction departs in part from the original appearance. Looking at it with that nuance makes it an interesting lesson in how heritage is restored.

7 Almiruete and the botargas

Now on the eastern branch, Almiruete is a dependent hamlet of Tamajón perched on a slope. Its cobbled streets keep wooden balconies and traditional load-bearing walls in very good condition.

Its fame, however, comes from intangible heritage. At Carnival the Botargas y Mascaritas come out, one of the best-known winter masquerades in Guadalajara.

The botargas wear wooden masks, white costumes and large cowbells at the waist. They go round the village and the countryside in a ritual of ancient roots, linked to fertility and the protection of the harvest.

8 Palancares, the hamlet of silence

On the way to Valverde appears Palancares, a tiny hamlet (with barely eight inhabitants in 2017) surrounded by oak woods.

There are no great monuments here. What interests is domestic architecture in its pure state: wooden beams as lintels, conical chimneys and openings facing the sun.

For those who want to break away from the busier stops, it is a perfect halt for walking slowly and observing the details.

9 Valverde de los Arroyos and the Chorreras de Despeñalagua

The route culminates in Valverde de los Arroyos, on the eastern face of the Ocejón. Many consider it the most photogenic village of the group.

Its main square, with the church and a very well-preserved cluster of slate and wood houses, is one of the most recognisable images of black architecture.

From the village starts the path to the Chorreras de Despeñalagua, about 4 kilometres round trip with a little over 100 metres of climbing.

The stream plunges down vertical walls in several drops. The total height varies depending on how it is measured, although the most repeated figure is around 70-80 metres. In spring, with the thaw, the flow is spectacular.

Practical tips for the route of the black villages

The district is quiet and easy to explore, but it helps to arrive with some homework done. Distances are short in kilometres and long in bends.

Transport and roads

• Your own car: public transport is very limited and a car is almost essential.
• Roads: they are narrow local roads, with many bends and some stretches in worse condition. Drive without hurry.
• Fuel: fill the tank in the larger towns before entering the sierra; there are no petrol stations in the hamlets.
• Coverage: in the closed valleys it often fails. Download the maps before setting out.

When to go

• Spring: the best season to see Despeñalagua and the Aljibe with plenty of water.
• Autumn: golden oak woods and, a little further away, the Hayedo de Tejera Negra beech forest, in Cantalojas, at its best.
• Winter: the Almiruete Carnival and slate covered in frost.

Where to sleep and eat

Tamajón and Valverde de los Arroyos concentrate a good part of the services, although several villages have rural guesthouses. Book ahead for long weekends and autumn weekends.

Respect for heritage: these villages are inside the protected surroundings of the Sierra Norte. Do not take slabs as souvenirs, do not climb on the dry-stone walls and use the marked trails.

Other destinations to complete the trip

If you have time left, the province offers other readings of the past. Cogolludo, with its Renaissance palace, lies on the way back to Guadalajara.

Further north, Sigüenza and Atienza connect with the Romanesque and with the medieval towns of the Castilian frontier. Together they complete a map of stone that runs from slate to red sandstone.

At dusk, when smoke rises from the conical chimneys and the Ocejón turns into a blue shadow, it is hard not to wonder how many generations stacked those same slabs. Which branch will you start deciphering them from?