Theoretically, a _teleferica_ can be of any length, though I think the longest on the Italian front is one of three or four miles, which makes a good part of the eight-thousand-foot climb up to the summit of the Pasubio, in the Trentino, and which--at the time of writing--is still in Italian hands. The cable may run on a level--as when it spans some great gorge between two mountain peaks--or it may be strung up to any incline not too great to make precarious the grip of the grooved overhead wheels of the basket. I was not able to learn what this limit is, but I have never seen a cable run at an angle of over forty-five degrees. Wherever a cable does not form a single great span it has to be supported at varying intervals by running over steel towers to prevent its sagging too near the earth. A _teleferica_ has never more than its two terminal stations. If the topography of a mountain is such that a continuous cable cannot be run the whole distance that it is desired to bridge by _teleferica_, two--or even three or four--separate installations are built. This is well illustrated in the ascent of the Adamello, the highest position on the Austro-Italian front. One goes to the lower station of the first _teleferica_ by motor, if the road is not blocked by slides. At the upper station of this two-mile-long cableway a tramcar pulled by a mule is taken for the journey over three or four miles of practically level narrow-gauge railway. Leaving this, a hundred-yard walk brings one to another _teleferica_, in the basket of which he is carried to its upper station, on the brow of a great cliff towering a sheer three thousand feet above the valley below. Three hundred yards farther up another _teleferica_ begins, which lands him by the side of the frozen lake at Rifugio Garibaldi. Three more _telefericas_--with breaks between each--and a dog-sled journey figure in the remainder of the climb to the glacier and summit of the Adamello. The engine of a _teleferica_--its power varies according to the weight and capacity of its basket and the height and length of the lift--is always installed at the upper station. The usual provision is for two baskets, one coming up while the other goes down. As with the ore-tramways, however, an installation can be made--if sufficient power is available--to carry two or three or even a greater number of baskets. As this puts a great strain on the cableway the Italians have only resorted to it at a few points where the pressure on the transport is very heavy.