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GPT40 - Glaciar Viedma

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Revisión del 17:40 16 dic 2022 de Freestyler (Discusión | contribuciones) (Recent Alerts and Suggestions)

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Glaciar Viedma desde el paso del Viento By egarabet

This is a simplified track file, not suitable for navigation on terrain. To get the detailed file see the following section on the main Greater Patagonian Trail article

__ Main trail
__ Packrafting


Instructions to follow the track in your smartphone
Mammut mobile.gif Wikiexplora.gif 347X140 wikiexplora.gif OR.gif
Summary (editar)
Activity Trekking
Location Argentina, El Chaltén
Atractions Vistas panorámicas
Duration días
"Días" no está en la lista de valores posibles (3 horas o menos, 1/2 día, 3/4 día, 1 día, 1 día y medio, 2 días, 3 días, 4 días, 5 días, 3 - 5 días, 6 - 7 días, 8 - 10 días, 11 - 14 días, 15 - 20 días, 20 - 25 días, 26 - 35 días, 36 - 60 días, 61 - 89 días, más de 90 días) para esta propiedad.
Trail Siempre Claro
Signage Inexistente
Infraestructure Inexistente
Topology Cruce
Gain/Loss (meters) +2721, -2721
Distance (k) 64.4
Skills No requiere
Original creator Jan Dudeck
Download KMZ/GPX Debes registrarte para descargar. Formulario es BREVISIMO
Para ver estos botones debes registrarte. Toma 30 segundos: es un formulario minusculo, de solo 3 campos obligatorios.











Recent Alerts and Suggestions

  • 2022-Dec 16 Frank

Watch video of the hike @ national park office. Bring a harness & learn how to do a Tyrolean traverse before you go. Where the trail differs from the track file it's easier to follow the trail which is generally good & clear.

  • 2020-Jan-12/ Oreste Marquis

Verify the wind forecast! The hills are so steep, strong wind could be dangerous! There’s no snow anymore and you will not need crampons.

2019-Nov-6 / Lea Geibel, Kevin Moe Equipment for Zip Line to cross rivers is not required anymore since this season. Most of the season the rivers are possible to cross on foot Paso Viedma had a decent amount of snow on it (Snow Line at 1000m), the ascent is straightforward but the descent on the side facing the ice field can be really iced over and difficult without crampons (ask at Visitor Center of the NP for current conditions)

Season Section Log

2022 Dec 15 Frank 3 days RR anticlockwise The river above Laguna Toro was waist deep & v fast, it nearly knocked me over. Not recommended to cross in the afternoon. In the early morning it may be only knee deep. Bring the harness anyway & learn how to use it, you may need it. On the glacier stay near the edge, people tend to go too far out. At the far side you should see footprints & cairns leading to the moraine. Camped @ small high camp just after exiting the moraine. There are a few stone corrals there. Lined the tent with rocks - pegs alone will pop. Good & sheltered camping @ Laguna Toro & after Paso del Viento @ Refuge but I went from high camp over Paso's Viento & Huemul in 1 long day. Very windy on Paso Huemul in the afternoon. Steep & loose descent, slow going but I saw 2 huemul. Amazing views of the Icecap between the two passes. Campsite @ Iceberg Bay one of the best on GPT. You can watch the bergs that calve off the icefield breaking up. At lower Rio Tunel we forded 300M downstream from the cable where the river is braided into channels. OK to cross @ noon, knee deep & fast but you need to pick a good spot. Definitely not fordable @ the cable where it runs deep in a single channel. Challenging hike but incredible views of the Icecap.


2020 Feb 2 - Tom and Maddie - 2 days

GPT 40 section log.

2 days anticlockwise. Trail is easy to follow. Talk to the rangers and they can let you know about any issues. Would be tough in bad weather but in clear weather there are no issues. For the glacier walk we were told to enter the glacier just after the beginning and to exit just after the end. I suspect due to the increased popularity a new route has been made in sections so follow the trail markers which divert from the GPX route.

We hired harnesses in El Chalten for the river crossings. We crossed the first on foot in the morning and had no issues. The second one we crossed using the equipment for the novelty but the river looked fine to cross further down. However I can see the river being hard to cross in high levels of rain.

This was a very beautiful section and very different to the northern sections.

2020 Jan 12 - Oreste Marquis - 4 days Did the trek counterclockwise wich is the only way to do it rangers say. You need to register to do this trek and guardaparques vive great advises. I crossed the rivers by foot and they were pretty hard, I recommand using the zipline. Awesome views with good weather, but the wind is really annoying! The campgrounds rangers told me to camp weren’t the ones on the trackfiles, but are pretty close to them so they are not hard to find. Great experience !!

2019 Dec - Matthieu - 3 days We did it in December with good weather, in 3 days ( instead of the 4 recommended, 2 first days in one big day). Awesome trekk and views. It is better to register first at the guardaparques office. Trekk easy to follow excepted on the walk on the glaciar before the paso del viento (a little one, not the Viedma). During this walk, I would not advise to try to walk by the wall of mud and rocks at the left of the glaciar, it is a steepy way and everything slips, we tried it and went on the ice after. The little walk on the ice just near didn´t feel unsafe to me, with the little rocks it doesn't really slip. Good camping sites, well protected from the weather conditions. The last downhill after the paso de Huemul is the most dangerous part, very steepy but with trees to hang for help. I would advise to do this part with good weather conditions, with mud it could be dangerous. For the rivercrossings (2 real ones) there is one way walking and one way with tyrolean on a zip Line. We did it with with the tyrolean, and it was extremly funny. Rental of material possible in El chalten. Of course you have to know how to insure yourself good, so inform yourself before going, it is not hard to understand though, but extremely dangerous if not done well. None of us had experience with it before.

2019-Dec-18 / Arnaud et Adriane / After we have taken the information at the national parc office, we only had 2 days of correct weather. So we decided not to walk the entire section but to go only to the paso del viento to get the view on the campo de hielo (glaciar viedma), following the advises of the guardaparques. I think it is the highlight of the section but not sure since I have never walked it entirely. On the first day we also took the time to walk to the summit of the cerro loma del pliegue tumbado (1500m of height). It offers an amazing view on the fitz roy and on the cerro torre, the 2 rockstars of El Chalten. On the second day we went to el Paso del Viento. The view there on the campo de hielo is absolutely fascinating. The hike is very tough but is absolutely worth the effort.  You walk on a glaciar during 2kms but no equipment or particular skill is needed. It was very very very windy (and happily it was a quiet day I do not imagine on other day). Day 1 : El Chalten-cerro loma del pliegue tumbado-laguna torro : 27km with big elevation gain (around 1700m) Day 2 : laguna toro - paso del viento - laguna toro : 18km. Day 3 : back to El Chalten : 17km.

I definitely recomand to follow the guardaparques advises and pay a huge attention to the weather. On this section with a bad weather and a strong wind I think it is dangerous to try to walk it entirely. And if it is cloudy, you will miss amazing views.

The riverford after the laguna toro was easy on the way to the paso del viento (on the morning) but very dangerous on the way back (on the afternoon with all the gletchers melting I think). The worst we've done yet. If you intend to get back after the paso del viento I advise to get equipment to be able to use the zip line that has been settled by the guardaparques. It us much more secured than crossing the river on the afternoon.


  • 2019-Nov-4 / Lea Geibel, Kevin Moe / 4 days / counter-clockwise / regular hiking route

Beautiful hike in good weather! Great views of the ice sheet and mountains from Paso Del Viento. Highly recommend waiting for clear weather so you don't miss the scenery! We went up right after a big storm. The trail was a bit muddy up to the Laguna Torro, and the lee of the pass had a decent amount of snow. The windward side was pretty icy and more difficult than the snow. The next day we took a detour and cut cross country to walk on the Campo De Hielo Sur. Our route took a bit of steep scrambling to get down to it and back up around Paso De Huemul, and there were lots of open crevasses on the ice, so it would be good to have some experience and navigation skills if you want to do the same. Dropping down Paso Huemul on the trail was steep and a knee killer, and from Lago Viedma we had a hard time staying on the right trail amidst all the cow path, but aside from a few spiky bushes it's easy to cut cross country. Unnecessary to use the zip lines this year to cross the rivers. You have to camp only in the designated campsites.

Summary Table

GPT40: Glaciar Viedma
GPT40: Glaciar Viedma Hiking Packrafting
Group I: Campo de Hielo Sur 1 Total 65.0 km 22 h - -
Region Argentina: Rio Negro Trails (TL) 43.8 km 67.4% - -
Start El Chalten Minor Roads (MR) 1.5 km 2.3% - -
Finish Lago Viedma (Bahia Tunel) Primary Roads (PR) 3.4 km 5.2% - -
Status Published & Verified Cross-Country (CC) 16.3 km 25.0% - -
Traversable Jan - Mar (Maybe: Dec, Apr) Bush-Bashing (BB) - - - -
Packraft Only Burden Ferry (FY) - - - -
Connects to GPT39, GPT41 Investigation (I) - - - -
Options None Exploration (EXP) - - - -
Hiking Packrafting Total on Water - -
Attraction 5 (of 5) - River (RI) - -
Difficulty 5 (of 5) - Lake (LK) - -
Direction Both ↓↑ - Fjord (FJ) - -
Comment -
Character Alpine Terrain, Glaciers
Challenges Demanding River Fords, Exposure to Elements, Clambering, Demanding Navigation, Possibly Impassable

Satellite Image Map

Elevation Profile

Elevation Profile of Regular Hiking Route

Elevation Profile of Regular Hiking Route (2019)

Section Planning Status

Recommended Travel Period

Benefits of Hiking and Packrafting

Recommended Travel Direction

Section Length and Travel Duration

Suitable Section Combinations

Section Attractiveness

Section Difficulty

Resupply

Resupply Town

Shopping: Food

Shopping: Fuel

Shopping: Equipment

Services: Restaurants

Services: Laundry

Services: ATM and Money Exchange

Accommodation: Hostals and Hotels

Accommodation: Cabañas

Accommodation: Camping

Transport: Ground Transport

Transport: Ferries

Transport: Shipping Services

Resupply on the Trail

Location, Names, Available Items and Services

Access to Route and Return

Access to Start

Return from Finish

Escape Options

Permits, Entry Fees and Right-of-Way Issues

Regular Route

Regular Hiking Route

  • Route description by Kara Davis after Season 2017/18:

Notes to consider before beginning: GPT40 is more popularly known as the Huemul Circuit, a 57-kilometer trek in El Parque Nacional Los Glaciares. Before embarking, the national park guard requires that every hiker obtain a permit, bring required safety gear, and watch a slideshow about the circuit. The safety gear consists of a harness, 2 carabiners (one steel and one aluminum), slings, and 35 m of rope. Most of this gear can be rented at any outfitter in town, but due to liability reasons, the outfitters won’t rent rope. We went to the local ferretería to purchase this. All of this gear is used for two river crossings on zip lines.

We were told that the rangers required hikers to bring their safety gear to the station before a permit would be issued. I would recommend that anyone who wants to do this circuit go to the rangers station the day before to watch the video and get any other necessary information about weather, conditions, etc. Since rentals can get expensive, renting the same day you leave and then going to the rangers station to show them your safety gear and get a permit seems to be the best course of action. The guard station is located on the south side of the Río Fitz Roy just across the bridge.


Most people hike the circuit clockwise (as the slideshow recommends). The trail begins just behind the rangers station and ascends up gentle grassy hills. It is fairly flat and well maintained. After passing Laguna Túnel o Tore, the trail deviates from the GPS route and loops to the first crossing of the Río Túnel on a zip line. During low water, it is possible to cross this river on foot by following the GPS track. After crossing the river, the trail climbs steeply to just above Glaciar Río Túnel Inferior. Along the south side of the glacier, the trail becomes hard to follow as it disappears in loose moraine. Walking on the edge of the glacier may be easier than trying to pick your way across the steep slope but be careful doing this.

After passing the glacier, follow maintained switchbacks up the side of the mountain towards Paso del Viento, the high point of the circuit. For the next 20 km, expect amazing views of Glacier Viedma. I cannot speak to the quality of the trail descending from the pass because of the blanketing snowpack that was present during our trek, but the sections where the snow did melt looked maintained. There is a small refugio, Refugio Paso del Viento located at a pond about 3.5 km from Paso Viento.

After passing the refugio, the trail contours and then climbs to Paso Huemul. Make sure to look back and enjoy the last view of Glacier Viedma. The descent is very steep and at one point there is even a rope to downclimb. There are also plenty of woody bushes (manzanita?) to cling to as you lower yourself down the trail. After completing the descent, the trail is straightforward and easygoing. There is camping on the beach at the peninsula, Camping Bahía de Hornos. There is one more river crossing with a zip line at the lower Río Túnel, and from there it is easy walking to the end!

Regular Packrafting Route

Optional Routes

Investigations and Explorations

Links to other Resources

Alerts and Logs of Past Seasons