The "pera furà" is an ancient quarry of millstones, obtained in a rocky wall clearly visible from the locality Chiampano, which in turn rises just above another even more evident granite formation overlooking Borgone, where for years there has been a cliff of climbing.
To reach the quarry, starting from the car park of the climbing wall, one follows the two existing paths on either side of the cliff, with both of them reaching Chiampano, while with the path on the right access is direct, with the one on the left it is necessary, once in the hamlet, turn right onto the main street thus reaching the signs for pera furà.
Access to the quarry is carried out with a short stretch of aided path (metal pegs driven into the rock) and a stretch of path where you need to be careful not to slip. In five minutes you arrive at the cave, on the walls of which the marks left by the quarrymen and some millstones, well hewn, still set in the rock and never completed again, are clearly visible.
continuing the climb towards Roccabruna (or Pietrabruna) you arrive, after a steep stretch of path, on the top of the "pear", with an exceptional view over the Susa valley. The hamlet, not far away, is abandoned. In the basements are found old vats, remains of barrels and some presses, witnesses of an ancient exploitation of the surrounding land as vineyards, where the remains of dry stone wall terraces are found (the toponym "vigne del rocco" is not chosen at random .. ..)