In Asia it is found on the Caucasus, but does not pass the Ural ridge into Siberia.
And Geographically, Siberia is now limited by the Ural Mountains on the W., by the Arctic and North Pacific Oceans on the N.
Limit of the ante-steppe is represented by a line drawn from the Pruth through Zhitomir, Kursk, Tambov and Stavropol-on-Volga to the sources of the Ural river.
His conquests to the west and north-west led him among the Mongols of the Caspian and to the banks of the Ural and the Volga; 1 The pastorals in this aspect are closer to Clemens Romanus than to Ignatius.
Then he annexed its colonies and thereby extended his dominions to the Polar Ocean and the Ural Mountains.
The Ural Mountains do not exceed 2000 or 3000 ft.
The Ural industry is the older, and is still conducted on primitive methods, wood being largely used for fuel, and the ore and metals being transported by water down the Kama and other rivers.
On the whole, we may say that the arctic and boreal faunas of Europe extend over Siberia, with a few additional species in the Ural and Baraba region - a number of new species also appearing in East Siberia, some spreading along the high plateau and others along the lower plateau from the steppes of the Gobi.
The Ural Mountains present the aspect of a broad swelling whose strata no longer exhibit the horizontality which is characteristic of central Russia, and moreover are deeply cut into by rivers.
Thick; in the Ural mountains it is over 4500 ft.; the Culm in Moravia is credited with the enormous thickness of over 42,000 ft.