The olive tree has found in Terra Alta the ideal geo-climatic and orographical conditions for its cultivation, especially in the municipality and surrounding areas of La Pobla de Massaluca. Absorbing the rays of the Mediterranean sun, and thriving in the dry and cold winters, the olive tree prospers in harsh water conditions and poorly fertile lands, characteristics that enable fruit of excellent quality of which to produce some of the best extra virgin olive oil of the world.

Approximately 90% of Caterra's members possess olive groves that they cultivate in a traditional way with the aid of machinery. The resultant olive of a rigorous care is tried in then processed at the coop.

Today Caterra has around 325 ha of olive groves (150 trees per ha.) registered under the protected denomination of Terra Alta. The predominant variety, grown on 80% ot the land owned and worked by Caterra's members is the Empeltre varieity, though there are minority varieties that also have their important role when it comes to obtaining top quality Extra-virgin Caterra oils. Among others, these are the Arbequina, the Manzanilla, Fargo and the Morruna.