Strabo Geography 4.6.10

[10] Near to these regions dwell the Iapodes, (a nation now mixed with the Illyrians, and Kelts,) close to them is [the Mount] Ocra. ¹ Formerly the Iapodes were numerous, inhabiting either side of the mountain, and were notorious for their predatory habits, but they have been entirely reduced and brought to subjection by Augustus Caesar. Their cities are Metulum, ² Arupenum, ³ Monetium, ⁴ and Vendon. ⁵ After these is the city of Segesta, ⁶ [situated] in a plain. Near to it flows the river Save, ⁷ which discharges itself into the Danube. This city lies in an advantageous position for carrying on war against the Dacians. ⁸ Ocra forms the lowest portion of the Alps, where they approach the territory of the Carni, and through which they convey the merchandise of Aquileia in waggons to Pamportus. ⁹ This route is not more than 400 stadia. From thence they convey it by the rivers as far as the Danube and surrounding districts, for a navigable river ¹⁰ which flows out of Illyria, passes by Pamportus, and discharges itself into the Save, so that the merchandise may easily be carried down both to Segesta, and to the Pannonians, and Taurisci. ¹¹ It is near this city, ¹² that the Kulp ¹³ falls into the Save. Both of these rivers are navigable, and flow down from the Alps. The Alps contain wild horses and cattle, and Polybius asserts that an animal of a singular form is found there; it resembles a stag except in the neck and hair, which are similar to those of a wild boar; under its chin it has a tuft of hair about a span long, and the thickness of the tail of a young horse. ¹⁴