Abra Azuca is a high mountain pass located in Peru in Departamento de Apurimac, on the border of Cusco and Apurimac regions, at an elevation of 5.190m (17,027ft) above the sea level. The pass is located between Huacullo (31kms) and Abra Anabi (39kms). It's one of the highest mountain roads of Peru.
This road is usually open throughout the summer, and during winter months, it can be closed when the access is not cleared of snow. This is one of South America’s highest road passes, the climb to which begins at 4,650m by the lakes near the small village of Huacullo. The scenery as you climb up to a high point at 5,060m is absolutely beautiful and it remains so on the small descents and climbs to the Azuca silver mine. On the road to the summit, there's another high mountain pass (the pass of Apacheta (4,750 masl) between Huaytara and Ayacucho. The top section is a huge anticlimax – you have to enter the mine at around 5,000m, register with security, then continue up to the pass at 5.190m. From the actual top the lack of good views is a big disappointment and the descent doesn’t go through particularly nice scenery either. However the initial climb is so nice that this is still a lovely pass. The road surface is good and apart from a few sections the gradients are reasonably gentle. Make sure you’re well-acclimatized before attempting to climb up this – once you climb up from the lakes by Huacullo the road doesn’t drop below 4,900m for 25kms.