Śukadeva Gosvāmī said: My dear King, there is a very large mountain called Trikūṭa. It is ten thousand yojanas [eighty thousand miles] high. Being surrounded by the Ocean of Milk, it is very beautifully situated.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
श्रीशुक उवाच । आसीद्गिरिवरो राजंस्त्रिकूट इति विश्रुतः । क्षीरोदेनावृतः श्रीमान् योजनायुतमुच्छ्रितः
śrīśuka uvāca | āsīdgirivaro rājaṃstrikūṭa iti viśrutaḥ | kṣīrodenāvṛtaḥ śrīmān yojanāyutamucchritaḥ
SB 8.2.1