Valtellina's (Sondrio Province see here on GoogleMaps) population lives along the road that traverses it since remote times. Roads where built (and abandoned) on the basis of the locomotion historically in use. As in many western world places it is the car which dominates the shape of the current landscape. New houses differentiate themselves by colors. This is a relatively new introduction occured in the last 2 decades. Once the only color was the gray of the granite sables coming from the Adda river.