RUDRA (probably from the root rud, " to howl," hence "the howler"), in Hindu Vedic mythology, a storm god, and father of the Maruts who are frequently called Rudriyas.
In the early spring the existence of a lake could only be certified by pools or hollows of water formed at the mouths of the principal feeders, such as the Khash Rud on the north-east, the Farah Rud on the north-west, and the Helmund, where its old bed terminates at no great distance from the Khash Rud.
The greater portion of the province is a lowland region extending inland from the sea to the base of the mountains of the Elburz range and, though the Sefid Rud (White river), which is called Kizil Uzain in its upper course and has its principal sources in the hills of Persian Kurdistan, is the only river of any size, the province is abundantly watered by many streams and an exceptionally great rainfall (in some years 50 in.).
The only industrial plants were flax and the dye-plants, chief among which were woad and rud, roid (a kind of bed-straw?).
The chief are the Sardab-rud, Chalus, Herhaz (Lar in its upper course), Babul, Tejen and Nika, and all are well stocked with trout, salmon (azad-mahi), perch (safid-mahi), carp (kupur), bream (subulu), sturgeon (sag-mahi) and other fish, which with rice form the staple food of the inhabitants; the sturgeon supplies the caviare for the Russian market.