The mills were mainly built on mountain slopes, in places exposed to the wind, so that they would turn with its force. The site where they were built, usually many together, was called a mill site.

One of the many mill sites of Merambello is located in the area of Vrouchas and consists of nine stone-built U-shaped windmills situated next to each other. All of them belong to the so-called Monopantos or Axetrocharis type. They have a long, narrow shape with one of its edges semicircular, where the wheel is located, and they turn only with a specific wind.