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 folding of the Ural mountains began in the earlier part of this period and was continued, after its close, into the Permian; and there are traces of uplifts in central Asia and Armenia.
The former inhabits Finland, Poland and the greater part of Russia, though not found east of the Ural Mountains.
Another division pressed farther westwards and probably made its headquarters near the northern end of the Caspian Sea and the southern part of the Ural Mountains.