Climbed it from the north side not from the col between pomerape and parinacota. Much easier route technically but very long. Did it just after acotango and felt that maybe a day rest would not have been a stupid idea.. Made it though :D
We attempted Pomerape the day after summiting Parinacota and from the same camp. We climbed the couloir on the southern side to 6130m and then turned around because we were not confident enough in our technical ability to climb the brittle 60 degree ice slope that led to the summit.
We attempted the climb with Ignacio from Sajama village who we also climbed Parinacota and Sajama with and I would highly recommend. Ignacio had climbed the easier eastern route of Pomerape a few weeks before our attempt and had had to turn back due to dangerous loose rocks. You can contact him through the park office.
climbed and skied down S face of Pomerape from Bolivian side... probably first ski descent of the mountain, at least via this face.
MOre info on this climb at: http://skicordillera.laviny.cz/?loc=13&clanek=26
48h after climbing Parinacota, I walked back from Sajama to Pomerape. BC at 5350m N-E side. 5h to summit.. solo and first in 2006. Great moments and outstanding view over Sajama.
Climbed as part of Expedicion de Los Payachatas 2006 para Europa, an expedition trying to promote the tarapaca region of chile as a climbing/trekking region. we sent 2 teams to the twin volcanoes, parinacota and pomerape. I climbed the south face starting from the chilean side rather than bolivia. My partner was Claudio Retemal, president of Chileans Mountain Guide Association and former chilean rock climbing champion.
both teams made the summit, the we had bad conditions being so late in the season. we climbed on rock, penitentes, and brittle ice. we traversed the mountain by descending the north face.
(does anyone know if this traverse has been done before?)
the area is spectacular, and pomerape is much more exciting than the slog up parinacota.