A 3 day ascent starting at Cebollapampa located in Quebrada Llanganuco (4000 m.a.s.l.) some 3 hs by car from Huaraz.
From Cebollapampa a 3-4 hours hike will take you Pisco's base camp (4500 m.a.s.l.); another option is to continue to Pisco's moraine camp (4900 m.a.s.l.) at the foot of the glacier.
On the second day 6-7 hours will separate the base camp from the summit, the ascent on the glacier is not technical except for a 40 meter wall angled at 55 degrees towards the end of the climb.
After summiting the mountain, the descent is begun back to base camp, return to Huaraz being the following day.