Pampa de Achala, Nature reserve in Córdoba Province, Argentina.

Pampa de Achala is a nature reserve in Córdoba Province covering over 146,000 hectares of highland terrain above 1,500 meters elevation. The landscape features mountain ranges with steep cliffs, open grasslands, and numerous streams that shape the rugged topography.

The Comechingones inhabited the highlands before Spanish colonisation. The Reserva Hídrica Provincial Pampa de Achala was created by provincial decree No. 361 on 31 March 1999 to protect the headwaters of most streams crossing Córdoba. Quebrada del Condorito National Park, covering 40,000 hectares within the reserve, was established separately.

The name comes from Quechua, but its meaning is uncertain: the Academia Mayor de la Lengua Quechua gives achala as 'fancy dress' or 'striking costume', while achalay means 'to adorn'. One hypothesis links it to the clothing the Comechingones wore against the cold; another reads it as an exclamation, 'how beautiful'.

Access is best achieved via hiking trails that depart from various starting points in the region and traverse different elevations. Visitors should prepare for changeable weather conditions and bring sturdy footwear and plenty of water.

The reserve's name comes from Quechua, though its meaning is uncertain: sources link achala to 'fancy dress' or 'adornment', and to achalay, an exclamation of admiration. The Comechingones, the region's original inhabitants, may be the reference. The provincial water reserve was created by decree No. 361 on 31 March 1999.