Km 0

The Greenway sets out from the city of Jaén. The actual starting point is in the west of the city at the Fuentezuelas sports centre, situated at the end of the Ronda Juez Juan Ruiz.
The first part of the route runs parallel to the active railway line that leads to Espeluy. After some 1,500m we part company with the Renfe railway line and start the climb towards Martos, tracing an arc that skirts the steep foothills of the Sierra de la Grana, crowned by the Jabalcuz mountains.
About two kilometres from the starting point the former railway line has been swallowed up by the Jaen ring motorway, but a nearby underpass and some rural paths take us to the first station, Torredelcampo. But before we reach the station, at km 6.3 we will have the chance to get our strength back at a fountain at the crossroads with the track from Jaén to Torredonjimeno. This track offers an alternative route to our Greenway as it forms part of the Los Torreones archaeological trail. In this area our view to right and left is punctuated by a succession of cortijos, the production centres of the olive groves that dominate the landscape. We continue our gradual climb up to km 8.8 and the ruins of the Moralduro loading platform and sidings which used to serve trains carrying gypsum from the nearby quarry.

Some 500m from Moralduro we see how roads have once again been built over the old railway route. In this case the Motorway A-316 at Torredelcampo is to blame. To skirt around the asphalt the Greenway makes use of the right-hand side of the bypass service road until we arrive at the local road. Then we need to use the overpass to cross to the other side of the bypass, taking care as we will be sharing the road with other road users. Once on the other side we take a right turn that quickly takes us back to the safety of the railway route and then on to the station.

Km 11
Torredelcampo station, 11 km from our starting point, has a water fountain and is the first large station on our route. After the requisite stop at the village, we take our leave of the station via the Caballico tunnel. The 333m long, curved tunnel is illuminated to ensure our safe passage. Soon after the tunnel comes the first metal bridge on the route and where our safe crossing is assured by a new surface made of railway sleepers. Located at km 12, the Piedra del Águila bridge has a span of 104m over the stream that gives it its name. Resting on two stone columns, its rusted iron lattice stands proud over the surrounding sea of olive trees. About a kilometre further on, after a splendid view over the endless olive groves and after crossing another, less spectacular, iron viaduct, we approach our stopping place: Torredonjimeno.
Before we arrive we need to negotiate another underground passageway. This tunnel (the last on the route) is around 120m long and leads us to the outskirts of Torredonjimeno. After an overpass over the N-321 we arrive at Torredonjimeno station (Km 15.2).

Km 22

From Torredonjimeno our route winds upwards as we gradually gain height on our way to Martos. Shortly after setting out we cross the new access road to Martos from the A-316 via a recently built cycle bridge. A little while later we need to cross the A-316 yet again (for the fourth time) although in this case the Greenway drops down to a local track and makes use of an underpass. After running parallel to the railway embankment we regain the railway line at a section that takes us due south.
Now we are on our way to the town centre of Martos, commanded by a height called the Peñón which towers some 350m above the city. This is the highest point of our Greenway (650m) and from now on it is practically all downhill until the end of the route at the river Guadajoz. We shall make our halt in Martos in the shade of the station awning (naturally) which, like all its adjoining buildings, is in a fairly good state of preservation (km 23).
And so as not to break with tradition, we leave Martos via yet another intersection with the A-316, in this case via a tunnel that avoids having to use the main road.
The rest of the route is characterized by a succession of tight bends. Only the terracing and irrigation ditches dare break the perfect geometry of the olive grove. The white stain of the old gypsum quarry alongside the railway track at km 26 also breaks up the green carpet of olive trees. Three kilometres further on we come across the A-316 (no surprise here!). Once again a recently built cycle bridge takes us safely over the motorway.

Km 37

Soon we come across another spectacular viaduct, spanning the Arroyo Higueral. Beyond this viaduct, slightly shorter than the last (133m), lies a gentler landscape, home to the isolated station of Vado-Jaén (km 37). It is more than 7 km from the nearest township and was built to serve only as a junction station.
Leaving behind Vado station we climb the gentle incline leading up from the Higueral ravine, the first upward stretch since we left Martos. But two kilometres from Vado we start to descend again and it is all downhill now until the end of the route.
The crest of this little pass is at the intersection with the old N-321 road. Here everything has been left as it was years ago; the road crosses the railway tracks by a little bridge. After a short while we leave the old road and our route continues along predominantly straight paths with great panoramic views of the nearby Víboras valley on one side of the river and the Ahillos heights on the other.

Km 42
At km 42 we arrive at the point where the railway line crosses the river via another spectacular metal viaduct. The 224m long lattice bridge serves as a perfect viewing point overlooking the valley. At the foot of the viaduct there is a medieval bridge whose single round arch spans the Víboras river and provides access to an almost forgotten old pathway.
We continue downwards, shortly to pass by an abandoned railway ballast quarry, the La Muela quarry. We are still moving through broken terrain and the railway line often has to rise between the olive groves on high embankments.

Km 50

From Alcaudete station we leave behind the monotony of olive trees and travel through a more natural landscape with a light covering of Mediterranean vegetation. The natural value of the area grows as, just a little further on, we pass by the Laguna Honda Nature Reserve (km 50) on our left. Our Greenway route affords us the best possible point from which to view this protected natural area.
From here we embark on the final stage of our route; three kilometres featuring two pronounced curves around the Loma de Desgarradero hill. At km 52 we cross the Desgarradero ravine by a new 83m long metal bridge, a foretaste of the spectacular viaduct over the river Guadajoz. This incredible Meccano-like structure sits on two iron trestles supporting a 200m long lattice truss. The waters of the Guadajoz river have caused a great area of saltcedar to form upstream of the bridge, home to a thriving colony of birds. The Guadajoz river does not flow downstream of the viaduct since, in times of rain, the level of the Vadomojón reservoir reaches the very trestles of the viaduct. On the other side of the viaduct the route continues in the province of Córdoba to Navas del Selpillar, on a similarly prepared 58 km long greenway through the rural district of the Subbética Cordobesa.