The Molino de Montosa, also known as Molino Alto, is located on the side of a hill near the town centre of Sedella. It dates back to at least 1752, and was the only water-powered mill in the village at that time, with a single set of stones. During the 19th century, the growing demand for flour, caused by the increase in population, led to the opening of a second mill in the village. At the end of the 1950s, the mill closed due to emigration and the importation of industrial flour.
In 1994, the Town Hall acquired the mill and began its restoration. The building has a rectangular ground plan measuring 15m long by 4m wide, with an irregular façade featuring six openings. The walls are masonry with stone and ceramic shingles, while the roof was completely renovated during the restoration, using wooden beams and Arabic tiles. Inside, the mill has a ground floor with a main hall, a milling room on a mezzanine, and original mazarí floors.