Along with each map, an extensive report would also be published, including not only the geological and mining description but also information about the climate and local crops.

Ideologically, Lucas Mallada was part of the movement known as regenerationism, together with Joaquín Costa, also from Aragon, publishing various political writings.

[3] Between 1875 and 1892, he published the Sinopsis de las especies fósiles que se han encontrado en España (Synopsis of the Fossil Species that have been Found in Spain), in 17 issues of the Bulletin of the Geological Map Commission.

His main work is the Explicación del mapa geológico de España ( Explanation of the Geological Map of Spain), published between 1895 and 1911 in seven volumes with a total of 3,740 pages.

In addition, he assembled a personal collection of minerals and fossils that, after his death, was donated by his family in 1925, along with his library and archive, to the Normal School of Teachers of Huesca.

This collection is practically complete in the Faculty of Human Sciences and Education of Huesca, which is part of the University of Zaragoza.