San Leonardo de Yagüe
Arganza Trail — Cañón del Río Lobos
Sunday, April 12, 2026
Arganza Trail 33K
33km D+ 1900m
Arganza Trail 21K
21km D+ 1100m
Arganza Trail 10K
10km D+ 600m
Kids 5K
5km D+ 250m
Date, registration & deadlines
Apr 12, 2026 · Check official website
Local guides
Race data
| Modality | Distance | Elevation Gain | ITRA | Max Time | Price |
|---|---|---|---|---|---|
| Arganza Trail 33K | 33 km | D+ 1900m | - | - | - |
| Arganza Trail 21K | 21 km | D+ 1100m | - | - | - |
| Arganza Trail 10K | 10 km | D+ 600m | - | - | - |
| Kids 5K | 5 km | D+ 250m | - | - | - |
What you need
How long will it take you?
Estimate your race time based on distance, elevation and your runner level.
Historical weather
Typical weather for the race date (10-year average)
Temperature
5°C – 15°C
Average 9°C
Rain
53%
2.8 mm avg
Wind
19 km/h
max. average
Sunshine hours
10h
daily average
Gear recommendations
Bring a waterproof jacket (53% chance of rain)
Gore Wear
Gore Wear R7 GTX Shakedry
Chubasquero Gore-Tex Shakedry ultraligero (110 g). Impermeabilidad total sin membrana interior, altamente transpirable. El referente para corredores de montaña.
Salomon
Salomon Bonatti WP
Chaqueta cortavientos impermeable ultraligera (135 g). Costuras selladas, capucha ajustable y ventilación trasera. Se pliega en su propio bolsillo.
Bring thermal layers (low of 5°C)
Buff
Buff Thermonet
Buff tubular térmico con tecnología Primaloft. Retiene el calor corporal, ultraligero y polivalente: gorro, braga, cinta. Ideal para alta montaña.
Odlo
Odlo Active Warm Eco
Camiseta térmica de manga larga con tejido reciclado y tratamiento antiolor. Regulación térmica activa, ideal como capa base en montaña.
Salomon
Salomon Cross Run Tight
Mallas largas de trail con tejido elástico y transpirable. Cintura ajustable, bolsillo trasero con cremallera. Protección contra el frío y la vegetación.
Salomon
Salomon Cross Warm Glove
Guantes térmicos de running con palma antideslizante y puntas táctiles. Ligeros, cálidos y compatibles con bastones.
Bring thermal gloves (low of 5°C)
Forecast for April 12
Real-time data from Open-Meteo
Arganza Trail: through the heart of the Cañón del Río Lobos
Arganza Trail is one of the most established mountain races in Castilla y León. From San Leonardo de Yagüe, in Soria’s Pinares region, the courses head into the Cañón del Río Lobos, one of the most spectacular natural landscapes on the Castilian plateau.
With 15 editions under its belt, Arganza Trail has become the race that opens the Castilla y León Mountain Running Cup calendar. Every April, hundreds of runners gather in this corner of Soria to run trails between limestone cliffs, pine forests, and the unmistakable silhouette of griffon vultures soaring above the canyon.
The distances
- 33K Trail — 1,900m D+, the main event. A complete tour of the Cañón del Río Lobos and surrounding hills, with technical sections and canyon panoramas from the ridges.
- 21K Trail — 1,100m D+, for junior and promise categories, and for runners seeking a tough challenge without the full distance.
- 10K Trail — 600m D+, the introductory distance. Ideal for a first taste of mountain trail running in a spectacular setting.
- Kids 5K — 250m D+, for the youngest runners. Turns the day into a family event.
There’s also the Corremontes (sports hiking) option on the long and short distances, for those who prefer to enjoy the course without racing.
The Cañón del Río Lobos
The Cañón del Río Lobos Natural Park is one of Spain’s most unique natural spaces. Declared a Natural Park in 1985, the canyon stretches 25 kilometres carved by the Río Lobos through limestone rock. Its cliffs host one of Europe’s largest griffon vulture colonies, and at the canyon’s heart stands the Templar hermitage of San Bartolomé, a place steeped in history and mystery.
The terrain combines canyon-floor trails among poplars and ash trees, climbs through pine-forested slopes, and ridges with views over the gorge. In April, spring begins to awaken in Soria’s pine forests and the canyon shows its greenest face.
San Leonardo de Yagüe and the Pinares region
San Leonardo de Yagüe is the eastern gateway to the Cañón del Río Lobos. Soria’s Pinares region is a land of vast forests, quiet villages, and hearty cuisine based on mushrooms, game, and local produce.
A short drive away, El Burgo de Osma offers a historic episcopal town with a Gothic cathedral and some of the province’s finest dining. And if you’re staying for the weekend, Laguna Negra and the Picos de Urbión are less than an hour away.
Discover more races in Castilla y León and plan your season with our race planner.
Mandatory Gear
According to the official race regulations
360 Complete Pack
Arganza Trail 2026 Registration
InscripciónXV edition of Arganza Trail with four distances. Registration through the Castilla y León Mountain Federation (FCLM).
Browse all inscripciónTips
- • Online registration via the FCLM website
- • Part of the Castilla y León Mountain Running Cup
- • Junior and promise categories on the 21K distance
- • 'Corremontes' (hiking) option available on long and short distances
Where to stay for Arganza Trail
AlojamientoSan Leonardo de Yagüe is a small town in the Pinares region. There are rural accommodation options in the area and nearby villages.
Browse all alojamientoTips
- • El Burgo de Osma (20 min) has good hotel options and is a historic town
- • Ucero (10 min) is at the entrance to the Cañón del Río Lobos with rural houses
- • Soria city (45 min) has more options if you prefer a town
- • April is mid-season: book a bit in advance
Gear for Arganza Trail
MaterialApril mountain race through the Cañón del Río Lobos and Soria's pine forests. Mixed terrain with canyon trails, forest tracks, and technical mountain sections.
Salomon
Salomon Speedcross 6
La zapatilla de trail más versátil de Salomon, ideal para terrenos técnicos y barro. Agarre excepcional con suela Contagrip y amortiguación EnergyCell+.
Salomon
Salomon Bonatti WP
Chaqueta cortavientos impermeable ultraligera (135 g). Costuras selladas, capucha ajustable y ventilación trasera. Se pliega en su propio bolsillo.
Salomon
Salomon ADV Skin 12
Chaleco de hidratación de 12 litros con sistema SensiFit. Dos soft flasks frontales de 500 ml incluidas. Bolsillos de fácil acceso y ajuste ceñido sin rebotes.
Tips
- • Trail shoes with good grip on mixed terrain: limestone, dirt, and roots
- • Waterproof jacket recommended: April rain can appear without warning
- • Poles useful for the 33K with 1,900m of elevation gain
- • Hydration pack with at least 1 litre
Nutrition for Arganza Trail
NutriciónThe 33K with 1,900m D+ requires good nutritional management. Aid stations on course but carry your own reserves.
Maurten
Maurten Gel 100
Gel de hidrogel con 25g de carbohidratos. La tecnología de hidrogel encapsula los carbohidratos para una absorción sin molestias gástricas. Sabor neutro, sin edulcorantes artificiales. Usado por corredores de élite en maratón y ultra.
226ERS
226ERS Isotonic Drink
Bebida isotónica en polvo de la marca española 226ERS. Aporta carbohidratos, electrolitos y minerales para mantener la hidratación durante el ejercicio. Fórmula con amilopectina para absorción rápida sin molestias digestivas.
Dorimed
Dátiles Medjool Dorimed
Dátiles Medjool de Palestina, grandes y jugosos. Cada unidad aporta unos 18 g de carbohidratos en un formato muy compacto. Textura blanda, fácil de masticar y con una densidad calórica altísima. El clásico entre los corredores que buscan alternativas naturales a los geles.
Tips
- • Carry gels or bars for long stretches between aid stations
- • April temperatures are mild, but maintain hydration
- • The 10K can be completed with minimal extra nutrition
- • Dried fruit and dates as natural energy supplements
How to get to San Leonardo de Yagüe
TransporteSan Leonardo de Yagüe is in the Pinares region, northwest of Soria, accessible by road from Madrid, Burgos, and Soria.
Browse all transporteTips
- • From Madrid: 2h30 via A-1 to Almazán and SO-920
- • From Burgos: 1h15 via N-234
- • From Soria: 45 min via N-234
- • Parking available in town
Car rental for Arganza Trail
Alquiler de vehículoNo direct public transport to San Leonardo de Yagüe. A car is the best option to get there and explore the area.
DRIVALIA
DRIVALIA Alquiler de vehículos por Suscripción CarCloud Country Plus
Suscripción de alquiler de vehículos tipo SUV/crossover, ideal para llegar a carreras de montaña por carreteras rurales y pistas forestales.
DRIVALIA
DRIVALIA Alquiler de vehículos por Suscripción CarCloud City
Suscripción de alquiler de vehículos urbanos, perfecta para desplazarte a carreras con buenos accesos por autovía y carretera convencional.
Tips
- • Visit the Cañón del Río Lobos, Laguna Negra, and El Burgo de Osma while there
- • Roads in good condition through the Pinares region
Sports insurance for Arganza Trail
SeguroMountain race with technical sections through canyon and forest terrain. Sports insurance recommended.
Browse all seguroTips
- • Castilla y León mountain federation licence includes sports insurance
- • Day insurance usually available through the organisation
- • Mountain rescue coverage recommended for the 33K
Body care for Arganza Trail
Cuidado corporalMixed canyon and forest terrain with limestone and roots. Foot protection is key for longer distances.
Compeed
Compeed Ampollas Medianas Duplo
Apósitos hidrocoloides para ampollas medianas. Alivio inmediato del dolor, protegen la ampolla mientras se cura y se mantienen en su sitio durante horas incluso con sudor. Pack de 10 unidades en envases individuales, ideal para llevar en la mochila de trail.
Lurbel
Lurbel Desafío Four
Calcetines de competición tobilleros con tejido Regenactiv y malla transpirable. Refuerzos en talón y puntera, costuras planas y ajuste sin arrugas. Marca española diseñada para trail running. Ultraligeros y de secado rápido.
Tips
- • Technical anti-blister socks are essential
- • Vaseline on friction zones before starting
- • April temperatures are pleasant, but wind on ridges can be cold
Sun protection for Arganza Trail
Protección solarApril in Soria can bring intense sun on exposed sections outside the canyon. Alternates shaded canyon sections with exposed ridges.
ISDIN
ISDIN Fotoprotector Fusion Water SPF 50+
Protector solar facial ultraligero de fase acuosa con SPF 50+. Textura fluida que se absorbe al instante sin dejar residuo graso, ideal para aplicar durante la carrera. Resistente al agua y al sudor.
Sun Bum
Sun Bum Sunscreen Lip Balm SPF 30
Bálsamo labial con protección solar SPF 30 en formato stick. Hidrata y protege los labios de quemaduras solares, un punto que muchos corredores olvidan. Sabor a coco, sin parabenos.
Tips
- • Sunscreen for exposed ridge sections
- • Lip balm with SPF
- • Cap or visor for sections outside the canyon
Frequently Asked Questions
- When is Arganza Trail 2026?
- The XV edition of Arganza Trail takes place on April 12, 2026 in San Leonardo de Yagüe, Soria, Spain.
- What distances does Arganza Trail offer?
- Four distances: 33K with 1,900m D+, 21K with 1,100m D+, 10K with 600m D+, and a kids race of 5K with 250m D+.
- Is it suitable for beginners?
- The 10K with 600m elevation gain is accessible for runners with some trail experience. The 33K requires mountain experience and good fitness.
- How do you get to San Leonardo de Yagüe?
- San Leonardo de Yagüe is in the Pinares region of Soria. From Madrid it's about 2h30 via the A-1 and N-234. From Burgos 1h15 via N-234. From Soria city 45 minutes.
- What makes the course special?
- The course runs through the Cañón del Río Lobos Natural Park, featuring spectacular limestone formations, griffon vultures, and the Templar hermitage of San Bartolomé. It's part of the Castilla y León Mountain Running Cup.
Similar races
View all similar races →
Photo: Mitxarro Bira Mitxarro Bira
Araia
27,5K y 14K por la Sierra de Altzania en el Parque Natural de Aizkorri-Aratz
V Trail Nieva de Cameros
Nieva de Cameros
V Trail Nieva de Cameros — 47K, 23K y 13,5K por el Camero Nuevo, La Rioja
Lakuntza-Aralar Mendi Lasterketa
Lakuntza
XXI Lakuntza-Aralar — Carrera de montaña por el Parque Natural de Aralar: 26K y 13K desde Lakuntza