Dry stone involves building things with stones that are not bound together with mortar. The things don't fall down because the stones are naturally interlocked or because of the use of load bearing structures. Dry stone techniques use rough, field, stones. So, for instance, Inca temples built without mortar but with dressed stone are not considered to be dry stone structures. Wherever you come from I'm sure you know dry stone structures.
Dry stone is most commonly used to build boundary walls but the technique can be used to construct anything from a way marker to a corral or a building. Around here the terraces (bancales in Spanish) are bounded by and held up by dry stone walls called ribazos. It's usually assumed (partly because they were responsible for so many agricultural improvements) that the bancales and ribazos, were built by the descendants of the North Africans, the Moors, who invaded Spain in the 8th Century. The problem is that field terraces use the local earth and field stones so that it's tricky to say whether they were built last year, last century or last millennium. Accurate dating of the terraces requires archaeological excavation. It turns out that the oldest terraces around here are Bronze Age, lots more are Moorish but the majority were actually built in the last three centuries.
The use of the bancales also varies. We logically assume, quite rightly, that terraces make hillsides easier to farm, and reduce the amount of soil carried away during torrential downpours. There are, though, other reasons for levelling the land. For instance, in this province, archaeologists have found that some of the Bronze age terraces were constructed as defensible positions to protect herds and flocks of animals as they were moved from pasture to pasture. This system of moving animals from higher to lower ground, from winter to summer pasture, is called transhumance.
Transhumance has always been important in Spain, more important in some parts than others. In the 13th Century Alfonso X, the Spanish king, defined a series of tracks and routes and a whole load of rules and regulations to stop conflicts between the nomadic herders and more settled farmers. The rules defined the characteristics of overnight resting places, widths of the tracks etc. It's these ancient rights that still protect these paths as public spaces today. At their height, there were over 125,000 kms of tracks in Spain.
One of the reasons for the importance of transhumance was that, from the 15th to the 19th Century, Spain had a monopoly on merino wool. All that time the wool trade brought enormous wealth to Spain. It's usually the explanation behind huge houses in now almost abandoned villages. The fine merino wool was the best material, at the time, for making high value clothing like underwear and stockings. That monopoly was broken when the Spanish royals gave gifts of herds of sheep to their royal relatives in other countries. Also, around the same time, both the Duke of Wellington and Napoleon recognised the economic potential of the sheep and sent a few home as their armies battled it out in the Spanish Peninsular War. The Australian merino flocks are descended from that looted Spanish stock.
The tracks the animals move along are called vías pecuarias, cañadas and the big wide ones, the ones that have to be 75 metres wide, Cañadas Reales (Royal droves). In this area the big tracks are also called veredas. One of the most important routes that comes through Pinoso is the Vereda de los Serranos which starts up near Cuenca and goes on to Jaen. There are lots of branch tracks (just like our motorways, trunk roads and local roads). Most of the animals passing through Pinoso were headed for the coast around Cartagena.
In this area there is another link between dry stone and transhumance as well as ancient terraces. Field stones were used to build shelters, stone sheds, called cucos. They could be used by farm labourers at busy times to save travelling time and also for shepherds and drovers passing by on those rural rights of way.
If you're local and you haven't seen them there are lots of cucos to the left of the road that runs from the Yecla Road down to Lel in the area called el Toscar and there are more alongside the road from Lel towards Ubeda - there are others in various places but these are easy to see from the road. Monóvar has the dry stone mapped out on this link and every now and again Pinoso and Jumilla Tourist offices do something about their dry stone.