It sits at an elevation of 300 meters on the western slope of Monte Arci. The largest Sardinian obsidian deposit, it frames the town it with its woods and interrupts a landscape of rolling hills, such as Su Vantosu. Pau is a small town, with little over 300 inhabitants, in upper Marmilla, a fertile territory rich in water bodies where cereals, legumes, fruit and grapes are cultivated. It may date back to the Roman period, as seen from findings of imbrices, vases, coins and traces of ancient construction at various sites, including Sa Telluri. The name likely derives from the Latin pagus (village). Three nuraghes in the area date to the prehistoric period: the single-towered Su Castiu or Spadua, and the two complexes at the Arruinas and Punta Su Nuraxi sites. Today, the town is composed of a network of streets lined with very old, stone houses with the Parish of San Giorgio Martire in the centre and the Church of Santa Prisca Martire, with an early September Feast Day, on the outskirts.