Srimad-Bhagavatam: Canto 5 - Chapter 1 - Verse 18
Sanskrit:
तथा घृतोदाद्बहि: क्रौञ्चद्वीपो द्विगुण: स्वमानेन क्षीरोदेन परित उपक्लृप्तो वृतो यथा कुशद्वीपो घृतोदेन यस्मिन् क्रौञ्चो नाम पर्वतराजो द्वीपनामनिर्वर्तक आस्ते ॥ १८ ॥
ITRANS:
tathā ghṛtodād bahiḥ krauñcadvīpo dvi-guṇaḥ sva-mānena kṣīrodena parita upakḷpto vṛto yathā kuśadvīpo ghṛtodena yasmin krauñco nāma parvata-rājo dvīpa-nāma-nirvartaka āste.
Translation:
Outside the ocean of clarified butter is another island, known as Krauñcadvīpa, which has a width of 1,600,000 yojanas [12,800,000 miles], twice the width of the ocean of clarified butter. As Kuśadvīpa is surrounded by an ocean of clarified butter, Krauñcadvīpa is surrounded by an ocean of milk as broad as the island itself. On Krauñcadvīpa there is a great mountain known as Krauñca, from which the island takes its name.