SB 5.16.9
evam daksinenelavrtam nisadho hemakuto himalaya iti prag-ayata yatha niladayo ’yuta-yojanotsedha hari-varsa-kimpurusa-bharatanam yatha-sankhyam.
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Similarly, south of Ilavrta-varsa and extending from east to west are three great mountains named (from north to south) Nisadha, Hemakuta and Himalaya. Each of them is 10,000 yojanas [80,000 miles] high. They mark the boundaries of the three varsas named Hari-varsa, Kimpurusa-varsa and Bharata-varsa [India].