The Forum was in the north-western quarter of the town, for the bases (and part of the shafts) of nineteen fine columns were found between 1878 and 1897 in Bailgate, standing in a line north and south, and fronting the course of Ermine Street. Of these five are double and one triple, and the space of 16 feet between two of the double columns—the sixth and seventh from the south—doubtless represents the street between the east and west gates; it is exactly in the line, and the side pavements were found much worn by the foot traffic. The building on the south side of this entrance to the Forum is thought to have been a temple; that on the north was probably a basilica, and a part of its northern wall—now called the Mint Wall—is still standing some 25 feet above-ground. It is 70 feet long and 3½ feet thick, and is formed of stone and of six courses of triple bonding tiles, with intervals of 5 feet between the upper courses. This building is supposed, from the red tint of the columns and the charred remains found at their base, to have been destroyed by fire. Along the centre of the city, parallel with Ermine Street, has been found a large main sewer, with branches running into it from right and left. The city was supplied with water by underground pipes from two springs—one on the hill outside the western wall, the other three-quarters of a mile away, on the Nettleham Road. From the latter the water was conducted, by pipes cemented together, into a neatly bricked well, called the Blind Well, which once existed a few yards north of the Assembly Rooms, but has now been filled up.