Of the tributaries of the river, the Voronezh, the Khoper, the Medvyeditsa and the Donets are navigable - the Donets having a course of 680 m., and during high water affording access to the government of Kharkov.
From its confluence with the northern Donets, in the Lugan mining district, 213 m.
This district, which comprises the coalmines of Lisichansk and the anthracite mines of Gorodishche, occupies about 110,000 acres on the banks of the Donets river.
The government is drained by the Don and its tributaries, of which the Donets, Chir and Mius enter from the right and the Khoper and Medvyeditsa from the left.
The government is under the administration of the ministry of war, and is divided into nine districts - Donets (chief town, Kamenskaya with 23,576 inhabitants in 1897), First Don district (Konstantinovskaya, 8800), Second Don district (NizhneChirskaya, 15,196), Rostov (Rostov-on-Don, 119,889), Salsky (Velikoknyazheskaya), Taganrog (Taganrog, 58,928 in 1900), Ust-medvyeditsa (Ust-medvyeditsa, 16,000), Khoper (Uryupina, 9600), Cherkasky (Novo-cherkassk, 52,005).