Pṛthivy-Āyāma-Vistara (Extent of the Earth) and Jambūdvīpa–Navavarṣa Description
वर्षाणि यानि षट् चैव तेषां ये वर्षपर्वताः / द्वे द्वे सहस्रे विस्तीर्णा योजनानां समुच्छ्रयात्
varṣāṇi yāni ṣaṭ caiva teṣāṃ ye varṣaparvatāḥ / dve dve sahasre vistīrṇā yojanānāṃ samucchrayāt
There are six varṣas, and the mountains that mark those regions spread two thousand yojanas in breadth each, in proportion to their height.