The low region lying south of the Great Plateau is neither extensive nor valuable. It consists of a mere strip of land along the coast of the Indian Ocean, extending a distance of about nine degrees (550 miles) from the mouth of the Persian Gulf to Cape Monze, near Kurrachee, but in width not exceeding ten or, at the most, twenty miles. This tract was occupied in ancient times mainly by a race which Herodotus called Ethiopians and the historians of Alexander Ichthyophagi (Fish-Eaters). It is an arid, sultry, and unpleasant region, scarcely possessing a perennial stream, and depending for its harvests entirely upon the winter rains, and for its water during the summer on wells which are chiefly brackish. Tolerable pasturage is, however, obtainable in places even during the hottest part of the year, and between Cape Jask and Gwattur the crops produced are far from contemptible.
A small tract of coast, a continuation of the territory just described, intervening between it and Kerman, was occupied in the early Persian times by a race known to the Persians as Maka, and to the Greeks as Mycians. This district, reaching from about Cape Jask to Gombroon, is one of greater fertility than is usual in these regions, being particularly productive in dates and grain. This fertility seems, however, to be confined to the vicinity of the sea-shore.
To complete the description of the Eastern provinces two other tracts must be mentioned. The mountain-chain which skirts the Great Plateau on the north, distinguished in these pages by the name of Elburz, broadens out after it passes the south-eastern corner of the Caspian Sea till it covers a space of nearly three degrees (more than 200 miles). Instead of the single lofty ridge which separates the Salt Desert from the low Caspian region, we find between the fifty-fourth and fifty-ninth degrees of east longitude three or four distinct ranges, all nearly parallel to one another, having a general direction of east and west. Broad and rich valleys are enclosed between these latitudinal ranges which are watered by rivers of a considerable size, as more especially the Ettrek and the Gurgan. Thus a territory is formed capable of supporting a largish population, a territory which possesses a natural unity, being shut in on three sides by mountains, and on the fourth by the Caspian. Here in Persian times was settled a people called Hyrcani; and from them the tract derived the name of Hyrcania (Vehrkana), while the lake on which it adjoined came to be known as “the Hyrcanian Sea.” The fertility of the region, its broad plains, shady woods and lofty mountains were celebrated by the ancient writers.