About two miles from the castrum, in the bed of the river Irwell, was found in 1772 a golden ornament for the neck (a bulla), which was richly ornamented; along its upper border was a hollow tube through which to pass the cord by which it was suspended round the neck of the wearer. Only one other specimen of this kind of ornament in gold has been found in England, and that also was in Lancashire (in Overborough). Within the area of the castrum various minor remains have from time to time been discovered, including a massive gold ring, coins, urns, tiles, spear–heads, household gods, and Roman pottery.[21]

Amongst the coins were many of the reigns of Trajanus (A.D. 53–117), Hadrianus, Antoninus Pius, and Marcus Aurelius;[22] they were all found in or near what is still known as Castlefield.

Around this Roman stronghold something approaching a town was no doubt built, if, indeed, the conquering forces did not find some such settlement existing on their arrival. From the evidence of the remains found, this suburban quarter was mostly on the north of the castrum. In Tonman Street, in 1839, was discovered a bronze statuette of Jupiter Stator. Remains of domestic building have frequently been met with, and the site of the cemetery lying on the south–east side of the station is indicated by the numerous sepulchral urns discovered there, as well as human bones and lachrymatory vessels of black glass. Judging solely from the remains which are known to have been found here, the conclusion we must arrive at is that, important as Mancunium was as a military centre, the village or town around its castrum was not as important as that of Ribchester.

The dates of the various coins recorded (many more have been found but not recorded) clearly show that the Romans were settled at Mancunium from about A.D. 80 to the time when they left the country.

Traces of a road have been found between Manchester and Wigan, and the latter place was certainly a Roman station, though it has not been satisfactorily proved to be identical with the Coccium named in the tenth Iter of Antoninus. In 1836 the ditch and agger by which the station was fortified were still visible near the crown of the hill on which part of Wigan now stands.[23] Many Roman coins and urns have been found near the station, and a stone built into the present parish church is considered to have been a portion of a Roman altar. From Wigan the road went north and south.

Returning to Manchester: from this centre issued another road going in a straight line to Ribchester; it passed across Campfield and the site of what is now the Victoria railway–station; it went on to Prestwick, Lower Darwen, Blackburn, and finally to the bank of the Ribble near Ribchester; the remains of the road have been seen nearly over the whole of its length. It is not thought to be quite so ancient as the other roads out of Mancunium;[24] however this may be, at Bremetonacum (Ribchester) was erected the largest castrum in the whole county.

Roman Ribchester was probably founded by the Emperor Agricola or by Hadrian.

Like nearly all the large stations, it was placed near to a river, and in this case the Ribble served as the fosse on the south–eastern side; its other boundaries have been clearly defined, the outline of fosse and vallum being still quite apparent, and within its limits are included the parish yard and Vicarage garden: its total area covers about ten statute acres. Its dimensions are: from the vallum on the north–west to the bed of the river 615 feet, and from the vallum on the south–east to that on the opposite side 611 feet. The corners on the north and north–east are rounded off, the southern ones being lost in the bed of the river, which has considerably altered its course.

At the angle pointing north, in 1888, a gateway was discovered.[25] It was 14 feet wide, the end of the wall at each side being carefully rounded.