Les, Spain
Friday, July 3, 2026
Distance
Climb
Start Time
Cutoff
Terrain
Difficulty
The CDH, Camins d'Hèr (Iron Roads), is a 110km ultra trail race through the wildest areas of Val d'Aran. Starting in Les, the course features 6,400 meters of elevation gain and explores the mining history of the valley while passing through stunning natural landscapes with lakes, waterfalls, and rivers. The race is part of the UTMB World Series Major events.
Mining history areas with tunnels and mines
Foot of the imposing Mauberme mountain
Landscapes with lakes, waterfalls, and rivers
Wildest areas of Val d'Aran
Start / Finish
Les
Vielha
Expo
Race Day
Recovery
What to bring
Closed shoes suitable for trail running
Pack (or similar) destined to transport mandatory equipment throughout the race
Mobile phone (smartphone MANDATORY)
Personal beaker 15 cl minimum
Minimum 1.5l water reserve
2 torches in good working order with spare cells/batteries for each torch
Survival bag or emergency bivvy bag
Whistle
Food reserve
Jacket with hood which will withstand bad weather in the mountains
A long-sleeve thermal layer (cotton excluded) with a minimum weight of 180 g
Long-legged trousers or race leggings OR a combination of legging and socks which cover the legs completely
Waterproof trouser cover
Cap or bandana or Buff®
Warm and water-proof gloves
What you get
Chip timing
Race photos
Running Stones (6)
Finals access for UTMB World Series
Two 30-liter spare bags for gear transport
On the day
Bag drop
Merchandise
Marshals on course
First aid on course
Before you enter
Other questions
Running Stones are used for qualification in the UTMB World Series. The CDH provides 6 Running Stones.
Assistance is only allowed at the Salardú and Arties aid stations. Assistance is forbidden at all other checkpoints and any other point on the course.
No, pacers are not allowed to set the pace in the race.
Each participant receives two 30-liter bags at race-pack collection. One bag is transported to Salardú and the other to Arties. After use, bags must be deposited in designated areas and will be returned to Vielha for collection.
A smartphone with international roaming for Spain and France is mandatory. The Livetrail application must be installed and activated. The phone must be kept on (airplane mode is prohibited) and should start with a fully charged battery.
Entry fee not listed
Check the race's registration page for pricing.Les, Spain
Friday, July 3, 2026
Are you the organiser of Camins d'Hèr - CDH - 110K?
We made a start. You make it yours.Claim this raceMore races like this one
Race finished
