A cluster of simple dwellings lay inside the walls as well as one large building containing evidence of copper smelting. Pottery excavated from the site included plain and decorated wares including symbolkeramik bowls bearing oculus motifs. Similar designs appear on various carved stone idols found at the site. Although primarily farmers, the inhabitants of Los Millares had crucially also learned metal working, especially the smelting and forming of copper, and the site is considered highly important in understanding the transition from the Neolithic to the Bronze Age. The Los Millares culture eventually came to dominate the Iberian peninsula.