Mount Fitz Roy hosts Ultra Fitz Roy from 16 to 17 October

Mount Fitz Roy (Cerro Chaltén) will form the mountain backdrop to Ultra Fitz Roy in El Chalten, Argentina, from 16 to 17 October 2026. The trail-running event will use marked paths around the town, private estates and areas of Los Glaciares National Park.

Ultra Fitz Roy brings five races to El Chalten

The organiser's 2026 regulations set the event for 16 and 17 October 2026, with 10K, 21K, 42K, 70K and 100K races. Accreditation is scheduled in El Chalten on 15 and 16 October, while the listed starts run from Friday night into Saturday morning.

The programme places the competition within the landscape that gives it its name. The 100K route starts in the central square of El Chalten on Friday 16 October, then crosses rural paths and reaches Los Glaciares National Park before returning towards the town. The event's rules require participants to remain on marked paths and carry their waste to the finish. The Ultra Fitz Roy regulations also allow route or start-time changes if safety conditions require them.

Mount Fitz Roy links the race to a protected landscape

The mountain is also known as Cerro Chaltén, a name connected with the Aonikenk word for smoking mountain. UNESCO places the peak at 3,375 metres above sea level and describes it as part of the high-altitude landscape of Los Glaciares National Park.

That setting gives the October race a more specific geographic identity than a town road event. Runners move between forest, glacial valleys, rivers and high mountain paths, while the park's protected status shapes the rules governing the course. The UNESCO profile of Los Glaciares records the park's exceptional natural landscape and its World Heritage status.

A 100K route crosses the Fitz Roy river corridor

The longest course shows how closely the event is tied to the surrounding terrain. After leaving El Chalten, it passes through Estancia La Quinta and Estancia Bonanza, enters the national park and follows paths near Laguna Torre before returning through the Fitz Roy river corridor.

The route information names the park visitor centre, the Fitz Roy river bridge and the Loma del Pliegue Tumbado path. For travellers watching the race rather than entering it, these landmarks explain why access conditions may differ between the town and remote trail sections during the event.

Visiting Mount Fitz Roy: what travellers from Western Europe should know

• Ultra Fitz Roy takes place from 16 to 17 October 2026 in El Chalten and areas of Los Glaciares National Park.
• The 100K course starts in the central square and uses marked mountain paths, including sections near the Fitz Roy river bridge and the park visitor centre.
• The route includes steep mountain terrain, river crossings and paths in forest and glacial valleys; the organiser requires appropriate safety equipment for the longer distances.
• El Chalten is reached by road from El Calafate through the RN40 and RP41 corridor; the race regulations identify El Chalten as the accreditation location.
• The official language is Spanish and the national currency is the Argentine peso.
• Entry requirements depend on your nationality; UK travellers can check the FCDO travel advice at gov.uk/foreign-travel-advice, Irish travellers the Department of Foreign Affairs at ireland.ie.

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Frequently asked questions about Mount Fitz Roy

When does Ultra Fitz Roy take place at Mount Fitz Roy?

Ultra Fitz Roy takes place from 16 to 17 October 2026 in El Chalten and Los Glaciares National Park.

Where is Mount Fitz Roy and how do you get there?

The mountain is in Los Glaciares National Park near El Chalten in Santa Cruz Province, Argentina. El Chalten is reached by road from El Calafate via the RN40 and RP41 corridor.

What is Mount Fitz Roy?

Mount Fitz Roy is a peak also known as Cerro Chaltén, rising to 3,375 metres above sea level within the World Heritage landscape of Los Glaciares National Park.