Access is from the high point of the Milluni – Tuni road and following the old aqueduct that starts just below the pass and leads to the glacier below the West Face of Huayna Potosi. There is a campamento (campamento Maria Lloco) in the valley below the peak. There are also good campsites next to the lake at the foot of the glacier between Maria Lloco and Huayna Potosi.
Maria Lloco routes from the SE
1 South West Ridge F
2 South Face PD+ R Invernizzi July 2007
2 South East Couloir D- A Baker, J Grinsted, G Beisly 2009
Maria Lloco Routes from the South