San Leonardo de Yagüe
Arganza Trail — Cañón del Río Lobos
Sunday, 11 April 2027estimated date
Arganza Trail 33K
33km D+ 1900m
Arganza Trail 21K
21km D+ 1100m
Arganza Trail 10K
10km D+ 600m
Kids 5K
5km D+ 250m
Your checklist for Arganza Trail — Cañón del Río Lobos
What you need, category by category, with our #1 pick for this race. Tick what you already have.
0 of 9 ready
Swipe to see all 10 categories
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GPS watch
Done, you already have it
View on Amazon →(opens in a new tab)Garmin Instinct 3 AMOLED 45 mm
Onboard topo maps, unlike the Instinct 3 Solar
Downside: Shorter battery life than the Instinct 3 Solar (no solar charging or MIP display)
Gear
Trail shoes with good grip on mixed terrain: limestone, dirt, and roots
Done, you already have it
View on Amazon →(opens in a new tab)Salomon Speedcross 6
Exceptional grip in mud and technical terrain
Downside: Average durability on pavement
Nutrition
Carry gels or bars for long stretches between aid stations
Done, you already have it
View on Amazon →(opens in a new tab)Maurten Gel 100
Hydrogel technology: excellent gastric tolerance
Downside: High price compared to other gels
Sun Protection
Sunscreen for exposed ridge sections
Done, you already have it
View on Amazon →(opens in a new tab)ISDIN Fusion Water Sunscreen SPF 50+
Ultralight texture, feels invisible on skin
Downside: Small format (50 ml), may run short on ultras
Body Care
Technical anti-blister socks are essential
Done, you already have it
View on Amazon →(opens in a new tab)Compeed Blister Plasters Medium Duo
Instant pain relief on application
Downside: Medium size may not cover large blisters
Car Rental
Visit the Cañón del Río Lobos, Laguna Negra, and El Burgo de Osma while there
Done, you already have it
View on Amazon →(opens in a new tab)DRIVALIA CarCloud Country Plus
Mandatory
Charged mobile phone
With charged battery and emergency number
Done, you already have it
View on Amazon →(opens in a new tab)Generic Running Waist Pack with Phone Pocket
Mandatory
Reusable cup
Mandatory at aid stations
Done, you already have it
View on Amazon →(opens in a new tab)Salomon Soft Flask 250 ml
High-flow valve: quick sips without hard biting
Downside: Pricier than generic Amazon flasks
Mandatory
Water reserve
Minimum 500ml
Done, you already have it
View on Amazon →(opens in a new tab)MARLOAR Soft Flask 500 ml (Pack of 2)
Two units for the price of one branded flask
Downside: Silicone is heavier and tastes slightly more than branded TPU flasks
Trip logistics
Registration, travel and insurance: what you should have sorted before race day.
Affiliate links: if you buy, we earn a commission at no extra cost to you.
Mandatory Gear
According to the official race regulations
Charged mobile phone
With charged battery and emergency number
Reusable cup
Mandatory at aid stations
Water reserve
Minimum 500ml
Items tagged “Mandatory” are in the checklist above, with a recommended product.
Race data
Terrain
Mountain
Difficulty
Intermediate
Distance
4 modalities
Arganza Trail 33K
- Distance
- 33 km
- Elevation Gain
- D+ 1900m
- Max Time
- -
Arganza Trail 21K
- Distance
- 21 km
- Elevation Gain
- D+ 1100m
- Max Time
- -
Arganza Trail 10K
- Distance
- 10 km
- Elevation Gain
- D+ 600m
- Max Time
- -
Kids 5K
- Distance
- 5 km
- Elevation Gain
- D+ 250m
- Max Time
- -
| Modality | Distance | Elevation Gain | Max Time |
|---|---|---|---|
| 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 | - |
Will your watch battery last the ~8 h of Arganza Trail — Cañón del Río Lobos?Worked out for the longest course (33 km). See which watches reach the finish with GPS on and which die on the way.Check my watch Check my watchArganza Trail — Cañón del Río Lobos requires mandatory gear: get it sorted early
Buying guides with the best value for money, picked for this kind of terrain.
Swipe to see all 4 comparisons
Historical weather
What to wear at 10 °C: guide and kit →
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)
Asics
Asics Gel-Trabuco 14 GTX
A best-selling beginner trail shoe: GEL cushioning, good stability and a waterproof GORE-TEX membrane. Versatile and reliable for training on mixed terrain in any weather.
Berghaus
Berghaus Paclite 2.0 GTX
Waterproof jacket with a Gore-Tex Paclite membrane (around 330 g). Fully waterproof with taped seams, fixed adjustable hood, storm flap behind the zip and cuff adjustment. Packs down small in a vest. Heavier than a pure running hardshell, but it meets the waterproof-breathable membrane requirement in race rules and is the affordable route into Gore-Tex.
Brooks
Brooks Cascadia 20 GTX
The Cascadia 20 with a GORE-TEX membrane: stability and protection for rocky mountain terrain, keeping the foot dry on cold, rainy days.
Gore Wear
Gore Wear C5 GORE-TEX Glove
Glove with a fully waterproof, windproof GORE-TEX membrane and light insulation. The pick for running in snow, sleet or heavy rain while keeping your hand dry.
Gore Wear
Gore Wear M GORE-TEX Thermo Glove
Warmer variant of the Gore Wear C5 GORE-TEX: the same fully waterproof, windproof membrane, with extra thermal lining for intense cold on top of snow or rain. The pick when the problem isn't just water, but water AND hard cold at once.
Gore Wear
Gore Wear R7 GTX Shakedry
Ultralight Gore-Tex Shakedry waterproof jacket (110 g). Full waterproofing without an inner membrane, highly breathable. The benchmark for mountain runners.
Nike
Nike Pegasus Trail 5 GORE-TEX
The best-selling gateway trail shoe: comfortable, cushioned and versatile for moving from road to trail. Waterproof GORE-TEX version, perfect for beginners and easy runs on mixed terrain.
Salomon
Salomon Bonatti Pro Waterproof Glove
Lightweight waterproof glove built for running, not just standing still in the snow: a waterproof membrane with more dexterity and less bulk than a thick membrane glove, for sustained rain without giving up handling gels or poles.
Salomon
Salomon Bonatti WP
Ultralight waterproof windproof jacket (135 g). Taped seams, adjustable hood and back ventilation. Packs into its own pocket.
Salomon
Salomon Speedcross 6 GTX
The Speedcross 6 with a GORE-TEX membrane: the same aggressive 5 mm lugs for mud and soft ground, now waterproof for winter, rain and snow.
Sealskinz
Sealskinz Waterproof Lightweight Glove
Lightweight waterproof glove from a brand that specializes in outdoor sport waterproofing. A solid middle ground between a thin windproof glove and a thick membrane glove: genuinely waterproof without the bulk or price of the Gore C5.
Shokz
Shokz OpenRun
Open-ear bone conduction headphones with IP67 rating: they take rain, mud and a rinse under the tap. Up to 8 h of battery and quick charge (10 min for 1.5 h). The most rugged pick of the range for training in bad weather.
TRIWONDER
TRIWONDER Waterproof Trail Gaiters
Waterproof, breathable low gaiters for trail running, hiking and mountain use. Under-shoe strap and adjustable elastic band. A budget-friendly alternative to premium technical brand gaiters.
Bring thermal layers (low of 5°C)
Buff
Buff Thermonet
Thermal tubular Buff with Primaloft technology. Traps body heat, ultralight and versatile: hat, neck gaiter, headband. Ideal for high mountain.
Craft
Craft Pro Hypervent LS Wind Top
Thermal top with a windproof ripstop panel on the chest and a highly ventilated soft jersey back. Built for high-intensity sessions in cold, windy conditions, with long cuffs and thumb loops.
HANKER
HANKER Thermal Neck Gaiter
Unisex thermal seamless neck gaiter in Soft Air Plus fabric (97% polyester). Seamless fit designed for trail running, cycling, motorcycling and outdoor sports. A budget alternative to Buff for moderate cold.
Icebreaker
Icebreaker Merino 200 Oasis LS Crewe
Long-sleeve thermal top in 100% merino wool (200g). Natural temperature regulation, genuine multi-day odor resistance and a soft, non-itch handfeel from the fine merino yarn.
Odlo
Odlo Active Warm Eco
Long-sleeve thermal base layer made from recycled fabric with anti-odour treatment. Active thermal regulation, ideal as a base layer in the mountains.
Odlo
Odlo I-Thermic Women's Longsleeve
Women's long-sleeve thermal top with insulating panels placed over cold-sensitive areas (lower back and kidneys). A mid-layer built for genuinely cold winter conditions, mountain outings or cross-country-style trail sessions.
ROCKBROS
ROCKBROS Thermal Windproof Balaclava
Thermal windproof balaclava covering head, ears, cheeks and neck. Designed for cycling and motorcycling, it works just as well on windy, freezing trail runs.
Salomon
Salomon Agile LS Tee
Lightweight quick-dry polyester long-sleeve tee with underarm mesh, a side pocket and reflective details. Works as a standalone layer in mild cold or as a base layer under a windbreaker on colder days.
Salomon
Salomon Cross Run Tight
Long trail tights with stretchy, breathable fabric. Adjustable waist, zipped back pocket. Protection from cold and vegetation.
Salomon
Salomon Cross Warm Glove
Thermal running gloves with a non-slip palm and touchscreen fingertips. Light, warm and compatible with poles.
Under Armour
Under Armour ColdGear Armour Compression Mock
Compression thermal top with a dual-layer fabric: ultra-warm brushed interior and quick-dry exterior. Second-skin compression fit with stretch mesh panels at the back and underarms for ventilation without losing warmth.
Under Armour
Under Armour ColdGear Armour Compression Mock (Men's)
Men's high-neck thermal compression top: brushed interior that holds heat and a quick-dry outer. Base layer for cold-weather runs.
Bring thermal gloves (low of 5°C)
Gore Wear
Gore Wear C5 GORE-TEX Glove
Glove with a fully waterproof, windproof GORE-TEX membrane and light insulation. The pick for running in snow, sleet or heavy rain while keeping your hand dry.
Gore Wear
Gore Wear M GORE-TEX Thermo Glove
Warmer variant of the Gore Wear C5 GORE-TEX: the same fully waterproof, windproof membrane, with extra thermal lining for intense cold on top of snow or rain. The pick when the problem isn't just water, but water AND hard cold at once.
Icebreaker
Icebreaker Oasis Liners
Thin merino wool glove, lightweight and breathable, with good moisture management and none of the overheating of a thick technical glove. Ideal as a liner layer or for mild winter temperatures.
LEKI
LEKI Ultra Trail Storm Shark
Glove for pole runners with the Shark system: clips straight into the grip of compatible LEKI poles, transferring force without closing your hand. Windproof and water-repellent.
Ronhill
Ronhill GORE-TEX Windstopper Glove
Running glove with GORE-TEX Windstopper fabric: blocks wind and repels light rain without the bulk of an insulated glove. Thin, close-fitting and dexterous.
Salomon
Salomon Bonatti Pro Waterproof Glove
Lightweight waterproof glove built for running, not just standing still in the snow: a waterproof membrane with more dexterity and less bulk than a thick membrane glove, for sustained rain without giving up handling gels or poles.
Salomon
Salomon Cross Warm Glove
Thermal running gloves with a non-slip palm and touchscreen fingertips. Light, warm and compatible with poles.
Salomon
Salomon Fast Wing Winter Glove
Technical winter trail running glove with a windproof outer shell and warm lining. Built for long outings in intense cold, wind and some moisture in the mountains.
Sealskinz
Sealskinz Waterproof Lightweight Glove
Lightweight waterproof glove from a brand that specializes in outdoor sport waterproofing. A solid middle ground between a thin windproof glove and a thick membrane glove: genuinely waterproof without the bulk or price of the Gore C5.
Consider long tights for nighttime cold
Amazon Essentials
Amazon Essentials Active Sculpt Plus-Size Leggings
High-waisted leggings with Active Sculpt compression fabric, available in plus sizes. Wide waistband that doesn't roll down or over-compress during long mountain outings.
HANKER
HANKER Women's Cropped Compression Leggings with Pockets
Compression capri tights with high waist and phone pockets. Quick-drying, suitable for running and trail.
Izas
Izas Olimpia Women's Long Tights
Women's long leggings with a shaping, push-up compression effect, stretch breathable fabric and reflective details. Originally designed for gym and yoga, but the compression and reflective details also make it usable for low-light running.
Joma
Joma Academy Knight Men's Thermal Tights
Men's thermal pants with a brushed inner lining, built for training and running in cold weather. Elastic drawstring waist and heat-retaining fabric for winter outings or cold early mornings.
Joma
Joma Vela II Women's Shorts
Lightweight, stretch women's running shorts with a wide size range (4XS to 2XL). Breathable fabric built for training and running in summer without overheating.
Salomon
Salomon Comet Warm Tight W
Salomon women's thermal long tights for training and racing in the cold. A warm layer for autumn and winter.
Salomon
Salomon Cross Run Tight
Long trail tights with stretchy, breathable fabric. Adjustable waist, zipped back pocket. Protection from cold and vegetation.
Forecast for 11 April
Weather forecast from Open-Meteo (may change until race day)
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.
360Complete Pack
Arganza Trail 2026 Registration
RegistrationXV edition of Arganza Trail with four distances. Registration through the Castilla y León Mountain Federation (FCLM).
Tips
- •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
AccommodationSan Leonardo de Yagüe is a small town in the Pinares region. There are rural accommodation options in the area and nearby villages.
Tips
- •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
GearApril mountain race through the Cañón del Río Lobos and Soria's pine forests. Mixed terrain with canyon trails, forest tracks, and technical mountain sections.
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
Which shoes for Arganza Trail — Cañón del Río Lobos?
Which footwear fits based on the race's terrain and weather
Which GPS watch for Arganza Trail — Cañón del Río Lobos?
Which watch has the battery to last based on your estimated finish time
Best Trail Running Poles 2026: Comparison and Buying Guide
Best trail running poles 2026: Black Diamond, Leki and Komperdell compared. Carbon vs aluminium, folding length, technique and how to pick your size.
Best Trail Running Hydration Vests 2026: Comparison and Buying Guide
Best trail running hydration vests 2026: 12 vests and packs compared. How many litres you need by distance, soft flasks vs reservoir, and fit.
Strength Training Gear for Trail Running at Home 2026: Comparison and Buying Guide
Comparison of the best strength training gear for trail runners at home: dumbbells, resistance bands, kettlebell, TRX, weight bench and foam roller, with a 3-day-a-week routine.
Nutrition for Arganza Trail
NutritionThe 33K with 1,900m D+ requires good nutritional management. Aid stations on course but carry your own reserves.
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
TransportSan Leonardo de Yagüe is in the Pinares region, northwest of Soria, accessible by road from Madrid, Burgos, and Soria.
Tips
- •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
Car RentalNo direct public transport to San Leonardo de Yagüe. A car is the best option to get there and explore the area.
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
InsuranceMountain race with technical sections through canyon and forest terrain. Sports insurance recommended.
Tips
- •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
Body CareMixed canyon and forest terrain with limestone and roots. Foot protection is key for longer distances.
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
Sun ProtectionApril in Soria can bring intense sun on exposed sections outside the canyon. Alternates shaded canyon sections with exposed ridges.
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.
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