MARCIA CASTELLUM. B. C. 145

The Marcia, a great Castellum Aquæ or Reservoir on the Via di Carciano. This is sometimes called the “Promenade” of Carciano, being a favourite walk on the brow of the hill, from which there is a distant view of S. Peter’s at Rome. This fine reservoir (of which two sides are here shewn) is of the time that this aqueduct was made, B.C. 145. It was probably from this reservoir that a branch specus descended to the Villa of Hadrian below, to which there is a bridle-road from near this point.

Plate X.

Aqueducts below Tivoli. Aqua Marcia, Reservoir.

AQUEDUCTS BELOW TIVOLI

AQUA MARCIA RESERVOIR

RESERVOIR OF AQUA MARCIA INTERIOR

This is another of the great reservoirs to receive and retain a supply of water on the edge of the hill, both as one of the many such reservoirs for the supply of water to Rome, and for the purpose of local irrigation. It consists of two large chambers, divided by an arcade, which is the usual plan, and is probably part of the original construction of B.C. 145. These reservoirs are remarkably picturesque and finely situated.

Plate XI.