Tach-kupri is built on the site of Pompeiopolis, and Voyavat in a fertile plain, at the foot of a height crowned by an old citadel. Voyavat is an important position, because it is at the intersection of the Sinope and Trebizond route.

The Sinope route turns to the north, and leads through a very rich and undulating country. This is one of the most fertile districts in Asia Minor.

The Trebizond route leads eastward, passes the Halys near Vizir Kupri, and, after numerous ascents and descents, issues beside a watercourse in a bay surrounded by olive-trees. Here is the town of Samsoun. It then leads along the coast of the Black Sea, crosses the Iris near Tcharchembeh, and the Thermadon near Thermeh; and leaving the little town of Unieh to the left and on the sea-shore, it goes by Fatsa, Ordau, and Kerasun to Tripoli; from there, after turning the bay of Platana, it leads to Trebizond.

The Tokat road bends more to the south after leaving Tcherkis; it crosses the mountains which border the basin of the Parthenius near Karadjcur, and descends by Kodja Hissar to the town of Tusia upon the Halys. It next traverses the river near Hadji Hamzeh or Osmanjik, and, after passing Marsivan, crosses the western affluent of the Iris at Amasia; from here it goes by Turkhal to Tokat. The direct route from Tokat to Erzeroum eastward goes from Tokat or from Turkhal to Niksar, on the Lycus, the eastern affluent of the Iris; and continuing by this affluent to Kara Hissar, it ascends near the villages of Kerkif or Lorri, the mountains which separate the waters of the Black Sea from the Euphrates, and descends into the plain of Erzeroum near Vijan.

There is another road from Constantinople to Sivas. This is the regular Angora track; it leaves the Trebizond route at Nicomedia, crosses the Sakaria near Geiweh; and following the chord of the arc which this river describes as it descends from the plateau of Asia Minor, leads by the little towns of Terekli and Torbali to Nalihan, near the ruins of Gordium; after which it ascends by the little town of Bei Bazar on to the Angora plateau. This plateau is one of the points which dominate Asia Minor; hence the reason why formerly so much importance was attached to the fortress of Gordium. The road then leads by the village of Bei Bazar, or by Tabadji, on to a ridge of mountains which separate the basin of the Sakaria from that of the Halys, and descends by the village of Akserai to the latter of these rivers. The stream is crossed either at a ford or on a raft, and the route goes by the villages of Sangor and Osman Koi to the town of Yuzgat; the chief seat of the family Tchapan-Oglou,[34] formerly one of the most powerful in Asia Minor. Yuzgat is an important position, because it is at the junction of the two routes from Tokat and Cæsarea. The first leads to the east; and crossing the mountains which separate the basin of the Halys from that of the Iris, it debouches through a deep ravine on to the lofty plateau of Zela, celebrated for Cæsar's victory over Pharnaces; from here it descends and slopes gently down to the Western Iris, near Tokat. The Cæsarea route turns to the south after leaving Yuzgat, and leading by the villages of Ingourli, Kislan, and Boghazlayan, recrosses the Halys near Emlar; after which it goes by Erkelet (Hiklar) to Cæsarea.

Another route leads by Angora to Cæsarea, and from Cæsarea to Malatia in the valley of the Euphrates. It is the route from Constantinople to Diarbekir and to Mosul. After leaving Nicomedia (Ismid) it turns south, ascends the mountains which separate the Astacenian from the Cianean Gulf, and descends to Lake Ascanius, near Nicea; then turning eastward, and passing alongside Mount Olympus, it crosses the Gallus at Lefke (Louka) near its junction with the Sakaria; then ascending this river along its left bank as far as Zugud (Soghat), it crosses the Thymbrius near Eski-Shehr, the ancient Doryleum, situated in the middle of a vast and bare plain. The road now rises insensibly by Sidi Ghazi and Sever Hissar to the Angora plateau. This is the easiest route to go from Nicomedia to the plateau of Asia Minor. It follows the watercourses.

Two routes lead from Angora to Cæsarea. One crosses the Halys near the village of Kara Keni, from whence it ascends the river along its right bank to the little town of Mandjour, where its two principal affluents unite. Then crossing the eastern affluent, between the villages of Tchalik and Ambar, the route leads to the foot of Mount Argea towards Cæsarea. The other road borders the eastern plateau of Asia Minor; and ascending the Halys along its right bank, passes the eastern affluent of this river above Mandjour; from here the route goes to Cæsarea, across a vast plain destitute of trees. It is the easiest road, but there are no habitations, and provisions are very scarce in this direction.

Cæsarea is a branching point for all the routes which cross the Euphrates, or which descend from the plateau of Asia Minor to the littoral of Cilicia. One of these routes leads to Sivas, another to Diarbekir, a third to Aintab, and a fourth to Adana and Tarsus. The first leads in a north-easterly direction, and ascends the eastern affluent of the Halys from Emlar to Sivas; this is the easiest route by which to ascend to the plateau of Armenia. The road from Angora by Tokat to Sivas is the shortest. It is best provided with provisions; but the route by Cæsarea is less broken and more accessible for artillery. The route from Cæsarea to Diarbekir leads eastward along the Melas till that river joins the Euphrates below Malatia. The river is then crossed in a ferry-boat at the village of Teis Oglan, and the road continues by the little town of Kharput to a chain of mountains which unite Mount Taurus to Mount Niphates. It descends with the principal affluent of the Tigris to Maïden, and from Maïden goes to the town of Arghana; from here it leads alongside this river to Diarbekir, and from Diarbekir goes by Djesire to Mosul.

The road from Cæsarea to Aintab leads in a south-easterly direction, traverses one of the chains which unite Mount Argea to the southern branch of Mount Taurus, and descends by the village of Garrin into the valley of El Bostan, towards the sources of the Sarus. The valley of El Bostan, although very high, is fertile, and planted with fruit-trees. El Bostan is the branching point of three routes which lead—one to Samozate, another to Aintab, and the third to Marash. The first route turns to the east of Mount Amanus and descends with an affluent of the Euphrates to Samozate; the second crosses the mountain, descends by a profound ravine to Aintab, and leads from Aintab to Aleppo alongside the Chalus. The third turns Mount Amanus on the west, and descends with the Pyramus to the little town of Marash, and from Marash goes to the village of Messis, on the gulf of Alexandretta.

The most frequented route from Cæsarea to Alexandretta is viâ Adana or Tarsus. This route leads to the south, turns Mount Argea towards the west, and goes by Endjazou, the ancient Castabale, and by Kara Hissar, the ancient Cybistra, to Yenji Bar, probably the ancient Nora; from here it ascends to the high plain of Nigdeh, which is watered, like El Bostan, by an affluent of the Sarus. It descends from Nigdeh to Ketch Hissar, called Dana by Xenophon, an important position, because it is at the intersection of the two routes of Cæsarea and Koniah; from there the road leads by the village of Tchikisla into a deep and winding gorge, hollowed out in the slopes of Mount Taurus, and where the different affluents of the Sarus unite together. From here the route debouches by the village of Abi Cheik into the great plain of Cilicia, on one side of which is Tarsus, and on the other Adana. In leaving the defile above mentioned, the road branches to the right for Tarsus, and to the left to Adana, and from Adana goes to Alexandretta. The best-known route from Constantinople to Syria is that of Koniah. It traverses the western border of the plateau of Asia Minor, and cuts the peninsula obliquely from the north-west to the south-east. This route, leaving the road to Angora, at Nicea, and ascending those branches of Mount Olympus which bound Lake Ascanius on the south, descends to the little town of Yeni Cheer, where the two routes from Brusa and Kiutayah cross. The first turns to the west and leads to Brusa; it passes by Mount Olympus, on the north. The second turns southward, and passing by Mount Olympus on the east, goes to the town of Ainegol (Yeni Ghoul), towards the sources of the Gallus, and from Ainegol leads by the village of Turbah to the town of Kiutayah upon the Thymbrius. It then ascends by the Thymbrius to its sources towards the village of Altyn Tash, and finally reaches the plateau of Afiun Kara Hissar, bounded on the west by the western chain of the Taurus, and on the east by a range of little lakes which almost touch each other, and which extend towards the south to the environs of Koniah. This plateau is very high. It is separated from the central plateau of Asia Minor by a series of hills, which are crowned towards the south by the Baba Dagh (mountain). The route passes between two chains of mountains, and leads by Bulwadin, built upon the site of Dynia, and by Izaklou to Ak-Shehr. This little town is situated in a well-watered plain, at the foot of a mountain covered with vegetation, and about six miles from a lake which bounds the plain on the east. The route leaves all the lakes to the left, and goes by Ilgyn and Kadoun Khan to the village of Hi Ladik, built upon the ruins of Laodicea Combusta; from here it is a ten hours' march to Koniah, the road leading there at the foot of the mountains which bound the plateau of Asia Minor on the south, and which rise gradually to the southern chain of Mount Taurus.