We have indeed already found it identical with a modern road. The modern high-road also corresponds with the old way for something like a mile at Otford over the Darent, and for two or three miles beyond; it is a modern road for more than half a mile before you reach the ferry at Snodland, and there is a road in construction which follows its track for some hundreds of yards on Gravelly Hill, near Caterham. For many miles of its course it is identical if not with high-roads at least with metalled lanes, as we had already found between Itchen Stoke and Bishop Sutton, and very commonly with unmetalled tracks or paths. But in all these cases it is broken: there are stretches of it unused. Modern advantages and modern necessities have left the Old Road continually to one side. Here for this very considerable distance it is identical with the great turnpike, and so remains identical up to and beyond its point of junction with the older 'Harrow Way' at Farnham.

Can we discover any explanation for this coincidence of a prehistoric track with the high-road of our own time, which is almost indifferent to soil? for the crossing of the clay? for the neighbourhood of the river?

A little consideration will enable us to do so. The hills which everywhere else afford so even a platform for the prehistoric road are here of a contour which forbids their use. To-day, as a thousand years ago, any road down this valley must have run upon this lowest line.

The contour-lines, of which a rough sketch is here appended, are enough to prove it.

There is a deep combe at Holybourne Down, two more on either side of Froyle, a fourth beyond Bentley, a fifth—smaller—before Farnham. All these gullies cut up into a hopeless tangle what in Surrey and Kent will become one unbroken bank of chalk. Any path attempting these hillsides would either have doubled its length in avoiding the hollows, or would—had it remained direct—have been a succession of steep ascents and falls; all the dry slopes which bound the vale to the north are a succession of steep and isolated projections, thrust out from the distant main chain of the chalk; many of them are crowned with separated summits. The road is therefore compelled to follow the valley floor with all the consequences I have noted.

As far as Froyle, two and a half miles from Alton, it never leaves the river by more than a quarter of a mile, but the valley is here dry, the soil gravelly and sandy, the height considerable (above three hundred feet), and there is no reason why it should go further from the stream than it did in the valley of the Itchen. After Froyle you get the clay, and then right on through Bentley the road does attempt to get away northward from the stream, avoiding the marshy levels and keeping to the 300-feet contour-line. It does not approach the river again till firmer ground is found near the Bull Inn. Thence to within two miles of Farnham it has to negotiate a good deal of clay, but it picks out such patches of gravel as it can find,[21] and it must be remembered that the valley of the Wey, in this early part, drains more rapidly, and has a less supply of water than that of the Itchen. Near Farnham, somewhat beyond Runwick House, it finds the sand again, and can follow along the low level without difficulty.

The Old Road keeps throughout this passage to the sunny northern bank of the river, so that, while it is compelled to keep to the bottom of the valley, it attempts at least to get the driest part of it.

Farnham, at the mouth of this valley, the point of junction between the Old Road and its still older predecessor from Salisbury Plain, was always a place of capital importance, especially in war. The Roman entrenchment, two miles up the valley, the Roman dwellings to the south, tell us only a little of its antiquity; and though our knowledge of the castle extends no further than the eleventh century, the fact that it was the meeting-place of the roads that came from Salisbury Plain, from the Channel, from London, and from the Straits of Dover, necessarily made it a key to southern England.

We have seen how the western roads converge there, first the Harrow Way, then our own road from Southampton Water and Winchester (a road which probably received the traffic of all the south beyond Dorsetshire), then the road from Portsmouth and the Meons, which came in at Chawton.