Cerro San Lorenzo Expedition Itinerary
Cerro San Lorenzo was an awesome expedition on so many levels. It was evident from the beginning that a tremendous amount of thought and planning took place before we even arrived in Balmaceda. I immediately felt the positive energy and excitement when meeting Paul, Breezy and Nataniel for the first time. – 2018 Climber
Depart home country
Reception in Balmaceda Airport. Transfer to hotel, Coyhaique. Gear check. Reception dinner.
COYHAIQUE – FONDO SAN LORENZO
We will travel eight hours along the Carretera Austral to Cochrane following the magnificent (and bumpy) Austral road. Upon arrival in Cochrane we will switch into 4×4 vehicles and continue on to the Fondo San Lorenzo by 4×4 vehicle. We will camp in mountain ambiance at the “campo” (farm) of Patagonia locals.
FUNDO SAN LORENZO – SAN LORENZO BASE CAMP
We will trek to the base of Mount San Lorenzo. Weather permitting, we will get our first views of the impressive snowy slopes of the mountain, which will captivate our sight and fascinate our imagination. Horses will carry our equipment to Base Camp. Camp at Toni Rohrer “refugio” (hut) at 1,100 m (3,600 ft.) at the edge of a beech forest.
SAN LORENZO BASE CAMP – LOWER PASO COMEDOR – SAN LORENZO BASE CAMP
We will ferry our loads to Paso Comedor, and then return trek back down to Base Camp. Camp at Toni Rohrer refugio.
SAN LORENZO BASE CAMP – LOWER PASO COMEDOR
We move to lower Paso Comedor following a rocky slope to pick up loads and potentially continue to climb to Paso la Corniza. Camp in a glacier ambiance at Paso la Corniza, or by a lake at Lower Paso Comedor, depending on weather conditions.
LOWER PASO COMEDOR – PASO LA CORNIZA
We climb to Paso la Corniza. Camp in a glacier ambiance at Paso la Corniza. Back carry, picking up our cache at Paso Comedor.
The guides did a great job of providing both formal instruction, for example practice using prussiks and setting up our tents, and in providing “on the go” guidance while we were climbing and also sharing information during our meals at the hut. This was my 6th AAI trip and I continue to learn useful information on the trips. One example that I learned and implemented on this trip was “happy socks” – keeping one pair for sleeping in the sleeping bag that is swapped with the hiking socks at night. – 2018 Climber
PASO LA CORNIZA – ICEFALL CAMP
Depart Paso la Corniza to reach Alto Calluqueo valley. We will descend 400 m, then ascend again and reach the lower icefall camp from where we have an incredible view over the Calluqueo glacier and San Lorenzo mountain range.
ICEFALL CAMP – SUMMIT – ICEFALL CAMP
1st potential day for ascent of San Lorenzo. A very long day– We will ascend a long, snowy slope to reach the base of the icefall. Then we navigate through a vertical maze of glaciated terrain to reach the “Hombro Norte” (North Shoulder), which is a high rime ice plateau from which we can see the North Summit. From the North Summit we will be able to view the Central Summit, which we will ascend if weather and climbing conditions seem appropriate. Descend to icefall camp.
Day 10 – 14
ICE FALL CAMP
Reserve day for weather, rest or skills building. It is unlikely at best that Patagonian weather will have allowed the above itinerary to be followed strictly. Additionally, few climbers can go 10 days in a row without rest. This course is also intended as a “Denali Prep” and one or more days will be dedicated to skills building, whether to prepare climbers for Denali or for other future climbs. Additional days are built into this itinerary to increase our probability of summitting.
ICE FALL CAMP – SAN LORENZO BASE CAMP
Return to San Lorenzo Base Camp.
SAN LORENZO BASE CAMP – FONDO SAN LORENZO
Horses will meet us at the Refugio Toni Rohrer and carry our equipment to the Fondo San Lorenzo while we will trek back to this campo with light packs. Conditions permitting, we will celebrate our expedition completion with an “asado” or traditional Chilean barbeque.
FONDO SAN LORENZO – COYHAIQUE
Return travel to Cochrane in 4×4 vehicles followed by eight hours of travel north along the Carretera Austral to Coyhaique following the magnificent (and bumpy) Austral road. Lodging in a hotel in Coyhaique.
COYHAIQUE – BALMACEDA – SANTIAGO
Transfer to Balmaceda/Coyhaique airport and fly to Santiago. Return flight home.
Arrive in home country
I very much enjoyed the expedition. This climb would serve as an excellent prep for Denali given the need to carry loads and the interesting weather.The experience was both fun and challenging. I felt like I had a true alpine experience even without summiting. This was my 6th AAI trip and I continue to learn useful information on the trips. This climb would serve as an excellent prep for Denali given the need to carry loads and the interesting weather.