Vishnupurana 2.2.8

2.2.8

caturaśītisāhasro yojanair asya cocchrayaḥ //

Jambu-dwípa is in the centre of all these: and in the centre of this continent is the golden mountain Meru. The height of Meru is eighty-four thousand Yojanas; and its depth below the surface of the earth is sixteen thousand. Its diameter at the summit is thirty-two thousand Yojanas; and at its base, sixteen thousand: so that this mountain is like the seed-cup of the lotus of the earth.