The building is an empty shell. Nothing of the former mill business has been
preserved, apart from some openings (8) in the ceiling through which grain may have been supplied to the
machinery on the ground floor.
The Casañal map (1891) tags the mill with
Fábrica de Papel
(Paper Factory).
However, I couldn't find any information confirming this. There was a paper factory north of the main road between Huesca and Barbastro. Perhaps this label is a mistake?
†
Map of the MTN25 series © IGN.es – 1998
the pink dot the lowest right is the mill
However, that the map shows a fracture in the acequia (irrigation channel) near the mill is accurate.
Both the aerial photograph and the 1998 map show how the two sections of the canal are connected by a canal that was kept in use between the sheds (5) after the livestock farm was established.
† An advertisement appeared in the
El Diario de Huesca of March 17, 1894, which read:
Arriendo — Se hace del Molino de Luna, con dos pares de piedras y maquinaria completa, y
doce cahizadas de tierra de primera clase. Dará razón …
or
Lease —
The Molino de Luna is for lease, with two pairs of millstones and complete machinery, and twelve cahizadas ‡ of first-class land. For details …
So in 1894 there was certainly a well-equipped grain mill in operation at that location, perhaps for many years already.
‡ Cahizada is a portion of land that can be sown with a cahíz of grain.
The content of a cahíz varies according to the region, but in Aragón it is estimated to be around 179 liters. See
Lara Izquierdo, Pablo — 1978 — Los contos al panicero
y su incidencia en la metrologĂa histórica aragonesa. In Revista de historia Jerónimo Zurita № 31-32, p269–285