Mbh 6.11.8a

“Sanjaya said,--‘O great king, in all islands, O son of Kuru’s race, men may be found that are fair, and those that are dark, and those also that are produced by a union of the fair and the dark races. But because the people there are all dark, therefore is that mountain called the Dark Mountain. After this, O chief of the Kurus, is the large mountain called Durgasaila. And then cometh the mountain called Kesari. The breezes that blow from that mountain are all charged with (odoriferous) effluvia. The measure of each of these mountains is double that of the one mentioned immediately before. O thou of Kuru’s race, it hath been said by the wise that there are seven Varshas in that island. The Varsha of Meru is called Mahakasa; that of the water-giving (Malaya) is called Kumudottara. The Varsha of Jaladhara is called Sukumara, while that of Raivatak is called Kaumara; and of Syama, Manikanchana. The Varsha of Kesara is called Mandaki, and that called after the next mountain is called Mahapuman. In the midst of that island is a large tree called Saka. In height and breadth the measure of that tree is equal to that of the Jamvu tree in Jamvudwipa. And the people there always adore that tree. There in that island are, many delightful provinces where Siva is worshipped, and thither repair the Siddhas, the Charanas, and the celestials. The people there, O king, are virtuous, and all the four orders, O Bharata, are devoted to their respective occupation. No instance of theft can be seen there. Freed from decrepitude and death and gifted with long life, the people there, O king, grow like rivers during the season of rains. The rivers there are full of sacred water, and Ganga herself, distributed as she hath been into various currents, is there.