[4] Initially, Euskadi Roja was published weekly from Bilbao.

As the Spanish Civil War broke out and San Sebastian fell, the newspaper moved back to Bilbao.

Apart from being circulated in Basque Country, Euskadi Roja was read in Santander and Asturias.

[8] At the time, Euskadi Roja was considered one of the Spanish communist publications of higher quality.

[1] Ramón Ormazabal and Ricardo Urondo served as directors of Euskadi Roja.