The municipal term of San Bartolomé of Tirajana has a surface of 395 Km2, It presents a form to triangulate whose vertex is found in the interior of the island, while the opposite side to the same one is found in the coast. The maximum altitude is reached in the well of the Snows, with 1949 m. It is a matter of the major insular municipality, covering approximately a 26% of the total surface of Gran Canaria , that is to say, its fifth part.
zones are distinguished differentiated: one of summits, above the 900/1000
mtrs, very abrupt and composed fundamentally by materials of the series
Preroque Nublo and Roque Nublo (material volcanic of the intermediate
episodes of Gran Canaria) and to the acid plates of material traquíticos
and fonolíticos (volcanic products derived from the oldest eruptions
of the island). All this space is covered by the flat of the pine forest
and the vegetation of mountain (retamas and codesos fundamentally).
Among the 900 and the 200 m. the zone is found
of medianías, that is surcada by a dense network of ravines in radial disposition, separated by some steep interfluvios
(backs that separate the ravines ) to way of knives, concluded generally by the materials of the series fonolítica and
traquítica. Is a zone of avalanches and detachments due to processes of landslide in masses (solifluxión ) in the interior
of the basin of Tunte, as for example those of Rosiana. The remainder of the materials of the Kettle of Tirajana is formed
by traquibasaltos (volcanic mixture of materials acids and basic), although with a presence more less than the previously
cited. In final, we cannot forget that we find ourselves in the Paleocanaria (old Island). It emphasizes also the presence
of an imposing ramp fonolítica-traquítica (Amurga) among the Ravines of Fataga and Tirajana and the solid mountainous of
Sándara and Pajonales that flank the Kettle of Tirajana. In general , the forms of the modelado of the Basin of Tirajana are
found very eroded , so much by the antiquity of the materilaes, as by the recent lack of eruptions. The vegetation of the
zone is found very altered by the action of the human being, although still remain important remainders of the natural vegetation,
as are the pine forests (Ojeda, Inagua and Pajonales) and own species of the vegetable flat of transition (palmerales, balos,
etc) and of the flat of bases of vegetation (association Klenio-euphorbión).
Finally , the coast of the municipality (-200m) is constituted by an extensive plain sedimentaria with low coast that goes since the estuary of the ravine of Tirajana, in the limit of Saint lit up, to the estuary of that of Ayagaures. In the estuary of this last ravine- jointly with those of Chamoriscán , Dates It and The Vicentes- the formation of the field of Dunes is found of Maspalomas and the also ecosystems of The Pond and the oasis of the same name.
From this point, the coast begins to escarp itself until the Tip of the Patch , in Arguineguín, that constitutes the western limit of the municipality. In this section of coast also some sandy and low beaches are found (Meloneras, The Sand, The Pajar, etc) that coincide with the estuaries of their respective ravines. In this low zone of the municipality continue dominating the material acids (traquitas and phonolites), although also appear some more recent eruptions of basaltic series II. In this low zone of the municipality it follows the association of cardonales, tabaibales and appears also , in the cordon coastal, a series of species halófilas and psanmófilas (plants lovers of the salt and the sand), above all, in the immediacies of the Pond and Dunes of Maspalomas.
Cercados de Espino- Lomo de Pedro Afonso- La Lumbre- Mesa de Las Pardelas
The way allows to contemplate the most genuine landscapes of montains of the South of Gran Canaria, the oldest territory of the island. The immense precipices draw a tormented relief that keeps an appreciable natural wealth.
With the exception of the first section, that saves a noticeable slope, the passage does not present worthy obstacles of mention, the beauty of the route pushes the traveller to overcome the difficulties of the route. It agrees to protect themselves of the sun with a cap and to go provided with water. A good footwear will make the long walk more comfortable.
It is difficult to erase the eddy of impressions that it causes to contemplate the multitude of singular landscapes that forestall traveller. These places still keep the peculiarity from the rural world of the south of the island.
The route allows to contemplate to a sample of the wealth and originality of the canary flora, specially in formation better adapted to the dryness, between which it emphasizes the cardonal tabaibal that section of the route is developed in the last, with units that frecuently surpass both meters of height. The Channel of Soria is witness of the enormous effort of the inhabitants of Gran Canaria to obtain water. One is a hydraulic work of enormous spread in the context of the island.
The route begins in Cercados de Espino, a town located in a splendid landscaping frame: the Precipice of Arguineguín. The payment conserves a constructed hermitage does something more than 100 years, to which the faithfuls went from numerous nail of the island following this way.
The first section includes the ascent from Cercados de Espino, next to the channel of the precipice of Arguineguín, to 150 meters of altitude of the sea, to the Backs of Pedro Afonso, that reach the 700. From the facade of the hermitage, it is continued by the track that follows the left of the highway until reaching a defined affluent dirt road. The footpath is ascending by the slope, next to a ravine that later crosses, and leaves to the right old alpendre of stone. After some steps, and throughout half hundred of meters, the way appears place setting almost of vegetation. Another one alpendre of identical invoice the left of the way has left. Here white taginaste is very abundant (Echium decaisnei) and the black (Echium onosmifolium), with its showy inflorescencias. After continuing with North course, a small promontory from which a panoramic one of the valley of Arguineguín is descried splendid and of the magnificent escarpments is reached that conform their walls. After crossing around 200 meters of made an effort ascent the footpath coflows in a track covered with cement next to a pool. It is promoted with South direction until finding a crossing. The right branch is taken that is raised, saving an appreciable slope. This place still conserves old dispersed units of canary pine (Pinus canariensis), that long ago covered profusely these nail of island. Some trees with great difficulty cling to the cracks of escarpments and roques. When culminating the section, is arrived at an asphalt road that ascends to the Backs of Pedro Afonso, from where obtains splendid a panoramic one of all the valley.
Here the second section begins that leads to La Lumbre. After crossing about 200 meters, the asphalt road is transformed into a earth track that concludes in a new crossing. The way continues taking the route from the right. After 50 minutes of march, the passage reaches the prey of La Lumbre, in the head of a precipice that, as it runs, is done deeper and fitted. The prey supplies to the cultures of tomato of the coastal strip. Here the third section that concludes, and with him begins the way, in the environs of Mesa of Pardelas. When arriving at La Lumbre, from the three earth tracks that the footpath finds, the one is taken from the left. The shade of the old and enormous canary pine that rises next to the way turns out appropriate to take a break and to replenish forces. More ahead, by means of a bridge, the footpath crosses the channel of Soria, whose vision it accompanies to the traveller throughout almost all his route After crossing around 100 meters, the passage is branched off. The way is taken from the right, that ascends to a hill. A scrub covers these places with arbustivo bearing, denominated tabaibal-cardonal, of high natural and landscaping interest: tabaibas sweet (balsamífera Euphorbia) and the teasels (Euphorbia canariensis) surpass both meters of height frequently. More ahead, the Mesa of the Pardelas is reached. After crossing means kilometer, the way concludes in a promontory from which a panoramic one of the south of the island is obtained splendid that reaches Dunes of Maspalomas. From the top, and returning on our steps, the way is retaken to again crossing the bridge that crosses the Channel of Soria. In this place the other bifurcation is taken: a earth track that leads to the asphalt road that goes to the Board. The alternative is to take the route that leads to El pajar from the Backs of Pedro Afonso, in the coast after crossing La Lumbre and the Mountain of Arguineguín..