The natural space of the Sierra de la Demanda extends between the neighbouring provinces of La Rioja and Burgos. In the part that corresponds to the Riojan municipalities of Ezcaray and Villavelayo is the Ascent to San Lorenzo by Bogolrrucia.
This mountainous space of easy access, is forming by a chain of high and rounded mountains that separate the valley of the High Oja and it of the High Najerilla. Surrounding the San Lorenzo peak, the highest in La Demanda and the second highest in the Iberian System to which it belongs, runs this route that will take us to contemplate the different places that these mountains separate, along with the magnificent views that the summit of San Lorenzo offers us, thanks to the relative ease that these summits offer in summer.
This simple route of 4.5 km in total allows non-mountainers to enjoy the ascent to a summit of more than 2000m, partly thanks to starting at a good altitude and saving only a slope of 311m in 2.25 km. From the pass of San Lorenzo where it begins, we contemplate surrounded by rounded peaks, the valley of Oja and high Najerilla. The well-defined trail runs along the hillside dominating the upper Oja valley and escorted by the peaks near the Cruz de la Demanda. The Bogolrrucia pass is a splendid balcony from where you can admire the Pancrudos and sense the path that climbs up the valley from San Millán de la Cogolla.
At the comfortable summit of San Lorenzo the altar to the Virgin of Valvanera awaits us, where every 10th of August a mass is celebrated in honour of the patron saint of Ezcaray, San Lorenzo, as well as a figure of esté. On clear days and with good visibility, the panoramic view is spectacular, with part of the Pyrenees, the Moncayo and the Muela del Urbión among others, also dominating the Ebro valley as it passes through the Rioja Alta.
If we want to extend our walk we can descend by the east shoulder of the San Lorenzo until arriving at the beginning of the ascent to the Cabeza Parda, where it begins a path that descends until the encounter of the track that raises from San Millán de la Cogolla, continuing by her, surrounding the San Lorenzo, to arrive at the parking of the hill.
At the car park of the San Lorenzo pass 24 km from Ezcaray, we arrive following the LR-416 that goes up to the ski slopes of Valdezcaray and from there continuing along the path, which still preserves the remains of the asphalt that covered it, until the pass. In the road LR-415 that joins Ezcaray with Posadas this road of access to the station begins. Ezcaray has a daily bus service that connects it with Stº Domingo de la Calzada and Logroño. Ezcaray can be reached by following the LR-111 from Stº Domingo de la Calzada or by this same road but from the neighbouring town of Burgos, Pradoluengo. Once in Ezcaray following this road we find, near the church, the crossroads that leads us to Posadas and the ski resort of Valdezcaray, continuing then by this detour we will cross the river Oja and we will turn to the right to continue by the road LR-415 where to few Km is the detour where the road LR-416 of ascent to Valdezcaray begins, this road in snow season ends in the parking lot of the season but in summer it is possible to continue more with the vehicle, the road has ended up becoming a path by the action of snow and ice. After leaving on our left a couple of paths that lead to the ski slopes, the route goes up along the hillside of San Lorenzo until it reaches the crossroads where it joins the paths that go up from San Millán, Mansilla and La Cruz de la Demanda, where the car park of the San Lorenzo hill is located.
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The route is mainly made up of trails made up of small slabs.
There are no water points along the whole route, especially in summer.
In winter it is only usual to find some more pets, and from afar with the animals that live in the area, roe deer and wild boar, in summer it is cattle territory, being normal to find sheep and goats around the summits taking advantage of the fresh stems of the bushes and cows in the pastures of the hill between the Alto de Bogolrrucia and the San Lorenzo.
This route has been carried out on site by SENDITUR on 04-05-2016. The route can vary greatly depending on the time of year, weather conditions and terrain, as well as the actions of others and the evolution suffered by the natural environment where it is located. SENDITUR is not responsible for any misuse or improper use of the comprehensive guides of its routes and/or publications, nor for any variations for the aforementioned reasons in their descriptions and recommends that everyone be responsible and prudent in carrying out the activity. Likewise, we invite you to document yourself with books and specialized guides to complement the information described. All times are approximate and take an indicative character, we have not taken into account the stops no matter how small they are. For any suggestion, SENDITUR invites you to send an email to
We begin this route in the Parking of the pass of the San Lorenzo (0h 00min), from it the trail that ascends to the San Lorenzo starts. The path that we go up to here, forks in two wrapping one of them to our objective, the San Lorenzo, to continue its course towards San Millán de la Cogolla.
Just in the curve that makes this path begins the trail, which runs up the hard initial steep in a straight line by the shoulder of the mountain.
Before reaching the summit of Bogolrrucia, the trail turns clearly to the left, leaving on our right the trail, less marked, that leads to this summit.
We continued the itinerary, now much softer, bordering the skirt of Bogolrrucia by a well-defined trail that little by little is gaining height by the hillside of the mountain, offering us the opportunity to contemplate the magnificent landscape that forms the Oja valley.
The route departs from the cobblestone hillside of the mountain to the wide Bogolrrucia Pass (0h 25min), crossing it from side to side in search of the next challenge of the day.
This practically flat section allows us to finish recovering to face the final part of the ascent. Once we cross this hill, the path climbs over the shoulder of the San Lorenzo.
The first zone is the hardest and the one that in worse state we are going to find, saves a good unevenness by a somewhat decomposed land.
With the typical zigzagging that allows us to gain height step by step, the route ascends, overcoming the greatest unevenness of the entire route, by the skirt of San Lorenzo.
In the vicinity of the summit the trail and the unevenness are not so evident, moment that indicates us the proximity of our objective, we must be attentive and take references that help us to find the way back to our return.
The last meters of the route through the wide and bare summit shows us the milestone of the San Lorenzo summit (1h 15min) and in the background the altar to the Virgin of Valvanera.
We will return following our steps, although finding the path with blue marks that brought us to the top can be somewhat expensive the good visibility of the rounded mountain and the comfortable slope of the shoulder where we climb allows the more accustomed, go without following any path in the direction of the Pass of Bogolrrucia (1h 30min) and there find the trail just before it reaches him.
From here we can continue along the path that cuts the skirt of the mountain to our starting point or continue straight through the cordal that ascends to the Alto de Bogolrrucia, a simple route that allows us to ascend another peak of more than 2000m.
If we follow this option and once we have conquered the summit we must continue along the mountain range until we reach the summit we ignored at the beginning of the route, to descend straight from it joining us with the original path and arrive at the Parking of the San Lorenzo Pass (1h 50min).
All the information related to the route, texts, images, videos, maps, diagrams, tracks, towns and places of tourist interest are published as a guide and may not coincide with the current state of each place. Before carrying out any activity, value your technical knowledge, your physical form, inform yourself about the meteorology and the variations that the route could have suffered, equípate correctly, be prudent and responsible at all times, not surpassing your capacities. From the commitment of SENDITUR with Nature and the respect to the balance of the environment, SENDITUR urges you to travel in a responsible way, with low environmental impact and respecting at all times the Natural, Cultural and Social environment wherever you go. For any suggestion, SENDITUR invites you to send an email to
Total distance. 4,5 Km
Total time. 1h 50min
From the Collado car park, if we also include the ascent of Alto de Bogolrrucia in the descent, we will have to add approximately 30 more minutes.
Time of year. Spring, summer and autumn.
Without snow or ice and with good weather is an accessible route, advisable and allows the less accustomed to enjoy the experience of climbing mountains over 2000m. The summer, spring or early autumn with more days of good visibility allows us to entertain ourselves contemplating the wide panorama that the summit of San Lorenzo offers us.
Required equipment. Nothing special.
Clothes and sports or mountain footwear according to the time of the year and the weather, the canteen with water if we make the route in summer and the backpack with the usual. Consult our list of material and equipment for hiking. Read more.
Slope acumulate. 622 m Slope positive. 311 m Slope negative. 311 m
Maximum altitude. 2.271 m Minimum altitude. 1.960 m
This route is physically undemanding, both because of its distance and the slope to be overcome, although we must not forget that we are above 2000m, we will find the two areas with the greatest slope at the beginning and at the end of the route, the intermediate part of the route being a comfortable approach to face the final climb.
Severity of the environment
No technical difficulty, as long as we don't find snow or ice. The ascent to the top of the San Lorenzo is made by a well-defined trail that borders the hillside of the mountain, a real stony field in some of its sections. In the initial part of the ascent, after the intermediate pass, there is the area with the most decomposed trail and the steepest slope.
Without any signposting, in summer the paths and trails are perfectly defined and with good visibility we have as reference the top of San Lorenzo for the climb, for the descent from its top the path is not entirely clear, so to locate it just direct our first steps to the southwest, taking as a visual reference the peak Salineros where we come from. Fogs and rapid weather changes are common in the area, making it relatively easy to become disoriented.
|1-Parking of the pass||0h 00min||1.960 m||0 km||30T 501846 4674629|
|2-Bogolrrucia Pass||0h 25min||2.132 m||1,46 Km||30T 502081 4676025|
|3-Summit of San Lorenzo||1h 15min||2.271 m||2,25 Km||30T 502266 4676709|
|4-Bogolrrucia Pass||1h 30min||2.132 m||3,04 Km||30T 502081 4676025|
|5-Parking of the pass||1h 50min||1.960 m||4,5 Km||30T 501846 4674629|
Coordinates UTM Datúm WGS84
This sketch of the route is not made to scale nor does it contain all the information relating to the area, it is merely indicative.
This schematic with the path is approximate and has been created from the derived cartographic base © Instituto Geográfico Nacional "Cuadrante 240-4 1:25.000".
Senditur has manipulated the tracks to correct the aberrant points that may exist, caused by problems with the reception of the GPS signal. In any case the tracks are always approximate.
SENDITUR encourages you to use the new technologies within your reach, using them as support and consultation in your activity, not basing the realization and orientation of the same only and exclusively on them, since they may see their functioning altered by very diverse causes, not functioning correctly and their indications may not be precise. SENDITUR is not responsible for any misuse and/or operation of its electronic guides and recommends that everyone be responsible and prudent in carrying out the activity. All opinions, advice and/or assessments made by SENDITUR in its descriptions are subject to and/or refer to the specific conditions that SENDITUR encountered on the specific day of the performance of the tour, referring to that specific day and always taking as reference trained and experienced people, with a high level of both physical and technical preparation, as well as correctly equipped, therefore all opinions, assessments and/or advice are for guidance only.
Una guapa ruta para disfrutar sin grandes esfuerzos,cómoda pero a la vez con la grata sensación de haber subido un dos mil importante como lo es el San Lorenzo
Localities of the route
Localities close to the route
¿Did you know that...
In the past, Mount San Lorenzo was known among the inhabitants of the area by the name of La Cuculla, and later passed on to its current name, San Lorenzo.
Don't miss out...
Coinciding with the festivity of San Lorenzo, the 10th of August is usually the most intense night in the Tears of San Lorenzo or Perseidas, having a privileged viewpoint to contemplate this shower of meteors, in this car park of the hill.
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