The point of meeting is to Levigliani of Stazzema. It arrives for Seravezza, Ruosina and Retignano, going up again the Valley of the Stream Vezza, on the right idrografica, following the provincial road of Arni.
The country of Levigliani is stretched on a balcony orografico, to 600 ms of altitude, at the base of the imposing towering walls of the South slope of the Corchia Mountain (1678 ms). The tourist entry to the cavern dista over 2 kms from the inhabited area. It is reached in few minutes for a road marmifera that goes up again, with some tornantis, up to the quota of 860 ms.

The artificial entry for the cavern of the Corchia has been drawn inside an old wise estrattivo. The gallery of connection almost seems the natural prosecution, in underground, of the external front of excavation of the marble.
In light slope is proceeded for almost 170 ms of length, overcoming a gradient of 20 ms around. The depth of the artificial duct is not perceivable to full for the presence of three doors in succession, that it separate as many segments of gallery closing to “aerial estate.” The goal is that to check the exchanges of tide among external and inside environment.
Just entered the hollow carsica, it is left on the right a stumpy concretion stalagmitica of conic form, denominated “The Policeman.” The progression in the cavern is facilitated by gangways, in the form of bridges, ramps and terraces in steel, that you/they have also mitigated the transformation of the environment carsico, induced by the tourist presence, above all because they avoid the contact with the fund of the cave.
With 37 ms of gradient and well 212 stairs, the run immediately faces a binding descent along her “Gallery Franosa.” The median line is constituted by an only impressive and narrow vain, that the 30 m of height overcomes, with a superior width never to the 4 ms, up to be reduced to 150 cms. The place has had a complex origin from a great vertical fracture, whose walls are introduced rather undulated today, sometimes with sub-horizontal, ample and deep incisions.
The “Gallery Franosa” it has term to quota 843, in one I broaden with deposits of conglomerated on the time, where they have almost contemporary origin her “Gallery of the English ones” and the entrance of the “Well Suzanne.”
The “Gallery of the English ones” it has a general development, in the equipped part, of 245 ms of length and it belongs to a network of rectilinear ducts, horizontal and superimposed, originated him on the plan of an only sub-vertical fracture, that meeting has gone to a further amplification for chemical phenomenons and mechanics. The two principal galleries of the network are separate, but they exist along the run different points of communication. These vertical connections start then to become more evident from the half in, with the time of the cavern that is raised up to discover the superior ducts. Really here, her “Gallery of the English ones” is often interrupted by small jumps, fully grown sometimes from chaos of blocks fallen by the tall one.

Along this part of the persorso, the walls of the cave are covered by scallops (that is small regular concavities, said also to “hits of gouge”), of varied dimensions, I am the result of past turbulent slides of the underground waters.
At the end of the “Gallery of the English ones”, on the left, a cascatella falls from a tall fireplace engraving the wall with ample grooves. The equipped run, reached quota 859 ms, it avoids straight to continue to toward her “Gone up again of the Romans.”
It is folded up to the right therefore for seeking the entry of the “Gallery of Friday”, through a narrow passage, that discards on the opposite side.
The “Gallery of Friday” it has a length of 261 ms and it is entirely of origin freatica. To a bystander of his development, while the duct turns to the left, the contrasted wall offers an imposing concretion to casting, that simulates the form of an eagle with the ready wings to the flight. Of side, a ravine stalagmitico, supported by a calcareous column, you/he/she has taken the name of “Hut trogloditica.”
Later around 75 ms, the is come to “Little pond of Friday.” Waters are a little deep, but they have to be old from a bridge that it is supported to the opposite sandy shore. This small space has always been a frequented I camp out for speleologists, at least to tener I count some innumerable writings that are crowded on the near walls.
Coralloidi of the petrified Forest is reached a hold and deep gorge, in which the waters of a brooklet are thrown that it continues to the right then in the “Well of the” or “of the Fall.” It has here origin that long descending branch of the cavern of the Corchia, that goes then to die on the fund, to the quota of 450 ms around.
The indications suggest to the right the direction that it penetrates more easily in the suggestive one “Gallery of the Stalactites.” There is however a sort of hallway to have to cross, also it concrezionato, although by now almost entirely fossil. It is “petrified Forest” that it is set of forehead, with stalactites and stalagmites from the bulgy forms and from the grey-brown color of the earth. Water doesn't flow anymore here and almost anybody drop vivifies the concretions, that are so dense that they almost hinder the walk. The gangways advance with attention in this stiffened world and dusty, zigzagando in all the directions. To the point more extreme of penetration in the cavern of the Corchia, the wall transudes of water that originates from the levels active freatici, sets over.
A big rock of collapse, with above a stalagmite falliforme, ago from lintel to the door of entry for the part still “long live” of the “Gallery of the Stalactites.” The speleologist Jean-Carlo Fait has defined the place as an oasis of rare beauty in mean to a world of stone, of mud and of water. They are environments of intense suggestion, to which few underground rooms to the world can be compared today still.
To describe how much is introduced to the eyes it is difficult for the chromatic wealth and the variety of forms that here they are originated. The concretions are set the one to the others, they go down along the walls and they are plunged in small puddles of clear water. The laces of stone of some fans of calcite show the alternation of colored layers. The drapery stalattitico grazes a stalagmite covered of calcareous nodules. On I break down him/it an only pillar it seems to hold up the time of this place of aesthetical sublimation.
Active stalagmites You “Gallery of the Stalactites” it is a typical behavior freatica, sets to the middle quota of 871 ms, in which the precipitation of the carbonate is still active. Also here the equipped run is suited for to penetrate with respect among the concretions. At the end, it is continued for a brief descending line, crossed by a brooklet in fall, with rocks of collapse that tighten the walk. Then the run returns plain and easy.
We are again to the point of closing of the final ring. On the left the possibility to see the eden of the again “Stalactites”; on the right the return to the terrestrial things.