Abra Antajirca is a high mountain pass at an elevation of 4.783m (15,692ft) above the sea level, located on the border of Lima and Pasco regions, in Peru.
Located in the Andes mountain range, the pass is the highest point of the spectacular Carretera 1NC. The road over the pass is extreme, very narrow and in many places bordered by a drop of hundreds of meters (many hundreds of feet) unprotected by guardrails. There are often traffic jams due to heavy trucks. At the summit there's a small chapel.
The pass is also known as Cerro Pirhua Jirca. It suffers the harsh meteorological conditions of the area every winter. The high elevation with its risk of altitude sickness, weather concerns, steep road grade and overall inaccessibility make the travel dangerous and difficult. Due to the high elevations and exposure, the road is subject to strong winds and rapid weather changes.