यस्मिन्नव वर्षाणि नवयोजनसहस्रायामान्यष्टभिर्मर्यादागिरिभिः सुविभक्तानि भवन्ति. ॥ ६ ॥
yasmin nava varsani nava-yojana-sahasrayamany astabhir maryada-
giribhih suvibhaktani bhavanti.
yasmin-in that Jambudvipa; nava-nine; varsani-divisions of land; nava-yojana-sahasra-72,000 miles in length; ayamani-measuring; astabhih-by eight; maryada-indicating the boundaries; giribhih-by mountains; suvibhaktani-nicely divided from one another; bhavanti-are.
In Jambudvipa there are nine divisions of land, each with a length of 9,000 yojanas [72,000 miles]. There are eight mountains that mark the boundaries of these divisions and separate them nicely.
Srila Visvanatha Cakravarti Thakura gives the following quotation from the Vayu Purana, wherein the locations of the various mountains, beginning with the Himalayas, are described.
dhanurvat samsthite jneye dve varse daksinottare. dirghani tatra catvari
caturasram ilavrtam iti daksinottare bharatottara-kuru-varse catvari
kimpurusa-harivarsa-ramyaka-hiranmayani varsani nila-
nisadhayos tirascinibhuya samudra-pravistayoh samlagnatvam
aṅgikrtya bhadrasva-ketumalayor api dhanur-akrtitvam. atas tayor
dairghyata eva madhye saṅkucitatvena nava-sahasrayamatvam. ilavrtasya
tu meroh sakasat catur-diksu nava-sahasrayamatvam
sambhavet vastutas tv ilavrta-bhadrasva-ketumalanam catus-trimsat-
sahasrayamatvam jneyam.