Human presence in the area of El Pedroso can be dated back to the Palaeolithic period, thanks to the discovery of flint arrowheads. The Neolithic megalithic culture was also present in the area, as has been confirmed by the recent discovery of a tholos. El Pedroso, like most towns in the area, gained importance after the Reconquest.
The walk begins and ends in the village of El Pedroso and crosses the curious area of granite outcrops known locally as montonás. At the beginning, on the right, there is an oil mill, closely followed by the remains of old granite quarries.
The walk starts on a compacted dirt track next to the electricity substation at km 34.9 of the A-351 road between Osuna and El Saucejo, very close to the town of Osuna.
This route starts and ends at the Visitor’s Centre of Dehesa de Abajo. First, it takes the road and then turns first left and then right to arrive to the ford called Vado de Don Simón.
We leave the A-375 in the direction of Seville, looking for the turning to the left that indicates Las Cabezas de San Juan on the A-8128. After 28 kilometres we reach a junction with the A371 where we turn right towards Las Cabezas de San Juan. We will continue along this road for 12.5 kilometres until we reach the municipality, where we will arrive at Avenida Dr. Fleming.
San Nicolás del Puerto is a small town but with an enormous and long history. The first civilisations (it is thought that there were Celtic settlements) gave way to the expanding Roman Empire.
You move away from the reservoir along the Viar Valley, fertile land used for growing cereals and orange trees.