It took Raphaël and I a bit less than 6 hours to reach the summit from Camp 2 (5990m).
Before that, we drove our 4x4 vehicle up to 5170m (CB Penitentes). After a night at CB, we put a Camp 1 at 5700m and slept there, then we went up to Camp 2.
Not a very good weather (clouds and snow), but it was worth the climb. On the summit, our 2 GPS were displaying 6763m. The huge and weird summit plateau is impressive. We did not find any summit book or testimonials from previous climbs (certainly hidden under the snow).
After 3 days pushing our bikes from the north side of Pissis we set up a camp at 5700m, then climbed the following day. Plenty of fresh snow so took 4h45 to the summit. Great views from the top. Cycling the ~23km back to the paving was easy enough as the surface is ok - going the other way we would have been able to cycle almost all of it too as the gradients are very gentle (we were coming from the west side of the peak, on the way to Corona del Inca - maybe if you take the turn off to a base camp on the south of the peak it's sandier).
Climbed in one push from the narrow part of the canyon leading to Caldera Corona del Inca. It's a very easy but long route (you start from 5000m approximately). Got there by bike (don't advise that - the approach is very sandy on long stretches, so you have to push your bike most of the time. On the other hand on the way back it was pretty fast).
Tatiana, Eduardo and I summited BONETE CHICO on the 10th of march 2007.
We understand now better its name, a so little “Bonete” in the middle of such a huge and high plateau.
Start from Caldera del Inca track at 5050 m. High camp at 5800m.
Very good summit day, no wind!
Also no summit book found !
6762m indicated by Edu’s GPS
Many thanks to Tatiana and Eduardo, firstname.lastname@example.org
Gabriel FAVA, Reinhold MILCH and I made a successfull ascent of Bonete Chico west face with perfect conditions on dec 11th 2006. We reached the summit at 13h30 /14h after leaving high camp (5952m) at 9h10 unfortunately not finding the summit book...
We went to base camp (5065m) without any major problems, but it seems tricky to get higher on this track with a 4WD.
Water avalaible at both camps (water flowing in the day at base camp in a sand quebrada, penitentes nearby).
GPS coordinates :
base camp S 28 04.103 W 068 49.230 (5065m)
high camp S 28 02.265 W 068 46.398 (5952m)
summit altitude checked by GPS : 6764m (quite in accordance with official 6759m), location S 28 01.147 - W 068 45.307
(possible to find some water a bit higher than base camp, at 5300/5350 m if setting up a camp higher, other penitentes in the quebrada).
Fantastic view from the top (a tiny summit for the Puna), in my view more impressive than Pissis. The summit zone is quite complex. From high camp, you first join a high plateau (S28 01.662 - W 068 45.930 at 6429m) and there, keep on direct ahead approx 1km climbing on the right, ascending gently in traverse on soft rocks, the summit is on the right (red rocks), the most distant one . Some easy rock climbing during the last 30 /50 m. Approx 1h30/2h from the plateau summit.
N°4 of the Andes and America is a fantatsic peak to be climbed for its exceptionnal view.It's really worth a visit!
NB. Griselda MORENO, from Salta, made a very bold solo ascent in windy conditions on early march 2006.
Its a very remote and rarely climbed mountain with fantastic views into the Gran Crater. We approched the area from the South by 4x4 from Fiambala via Chilecito, Villa Union and Jagüe. I summited together with my friends Fernando and Andy at the beginning of a Gran Crater Traverse after two and a half day of climbing. Unfortunately our three Argentinean friends had to return only few hours below the summit. From the summit we went north and descended into the Gran Crater. Three days later we arrived at the Mar del Plata base camp of Pissis.
GPS altitude: 6773m.
From the summit book, only two other climbers were on top in 2005. Since 1995 only around 15 people summited, so its probably the least frequently climbed peak of South Americas Top 10.
We had nearly every day perfect weather. Snow conditions were equal to the Google Earth satellite pictures.
In January 2005 I spent with my friend Hermann 5 weeks in Argentina. Our aim was to climb Cerro Bonete and Monte Pissis. For this purpose we had rented a 4x4 in San Juan. First we climbed several summits around Laguna Brava.
The entire report and more information as well as pictures you will find at http://members.aol.com/UweKraus5/site36_e.htm