Mills in Alto Aragón - harinero, central eléctrica
the road from Biescas
and the famous
National Park. Pass the Tunél de Gavín and park the car
in the Barranco del Infierno
before reaching the branch for Yésero.
The mill is on the left bank, down in the river bed.
Pictures: I.1998, XII.2003
he mill of Yésero
with the Río Sía and the Puerto de Cotefablo in the background.
The bridge leads to the village of Yésero situated behind the pastures at
The Barranco del Diablo
comes from the left.
The outer walls are still fine, but the roof
collapsed and in 1998 was resting on the upper floor. The latter later collapsed
under the weight thus burrying the workplace of the mill.
The water reservoir lies
next to the mill and a bit higher. The base of it
is level with the upper floor of the mill.
It measures 4 m across and with a depth of 6 m
is embalse and cubo in one. The thick walls
consist of mud, boulders and bricks. The water came pouring down
for more than 5 m before moving the rueda.
The balsa is fed by two supply channels.
The first, small and shallow, comes from the Barranco del Infierno and is
buried under the basement of the road brought up to modern standards.
The other canal is much bigger and longs the Río Sía.
We could not find the point where it splits off from the river.
Both channels enter the embalse at the same point fitted
with closing valve and grid. The reservoir is drained by two outlets, one for
each turbine. The tube leading to the power station is visible
in a corner at the outside near the entrance door of the mill.
The workplace before the roof
collapsed was neglected and full of dirt but still worth a visit because of
the machinery. The mill stones were situated at the wall directed towards
the balsa (right side of the picture). The wheel in the middle is the regulator
of the turbine.
he cupboard in the background
is a bolting machine.
A corn sifting machine is situated closer to the door and was in 2003 the only instrument
not mashed by the roof, although the drum was corroded to bits. Find other examples of
both machines in the San Marco
mill of Castillazuelo.
workfloor with cabra,
regulador and bolting machine
corn sifting machine
with inscriptions N°1 and 380 V
octogonal guardapolvo (stone case)
turbine for the mill stones
turbine for the power generator
The power station was isolated
from the rest of the room by a thin inner wall. A the time of our visit the small
space only contained a turbine. All the usual contraptions of an electricity
station where removed; only bolts and some isolators where left behind.
had their own outlet. The cárcavo of the power station opens directly
into the Río Sía while the water used in the mill was drained
through a spacious tunnel below the floor towards an outlet in the
facing wall. A channel then leads towards the Barranco del Infierno.
with grua (crane)
drain of the flour mill
chimney says Año 1943