One of the most celebrated, interesting and integral of the thirty-some Nuragic well-temples, where water worship was practiced, its name ‘fontana coperta’ (or covered fountain) well expresses its function and fine state of preservation. Three kilometres from Ballao, a town in the historic Gerrei region – along provincial road SP13 that goes from the town of Escalaplano - is the sacred well known as Funtana Coberta, nestled in a verdant valley floor closed in at its eastern end by a small hill.