Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 12

Sanskrit:

तत उत्पत्य तरसा दह्यमानतटादुभौ ।दशैकयोजनात्तुङ्गान्निपेततुरधो भुवि ॥ १२ ॥

ITRANS:

tata utpatya tarasādahyamāna-taṭād ubhaudaśaika-yojanāt tuṅgānnipetatur adho bhuvi

Translation:

The two of Them then suddenly jumped from the burning mountain, which was eleven yojanas high, and fell to the ground.

Purport:

Eleven yojanas is approximately ninety miles.