In turn, pioneer settlers and European immigrant families, mainly of Basque origin, participated in this process, carrying out work, commercial and professional activities.

These new inhabitants were located in the large fiscal areas, laying the foundations for a rural and pastoral life with nomadic activity.

At that time, the population grew after the incorporation of the territory of the Province of Neuquén to the agro-export model and the arrival of the General Roca Railway.

The clay soil and railway transportation created the necessary conditions to generate sources of work around the manufacture of bricks and hollow ceramics, and their sale in different geographical locations.

In the area of Anticlinal, belonging to Ramón M. Castro, the largest amount of clay was found; Its population exploited the resource and transported the products to the town.

Ramón Castro is a jurisdiction made up of different parajes, small roadside inhabited places; Santo Domingo, Barda Negra and Anticlinal.