...Sineru, monks, the monarch of montains, is eighty-four thousand leagues1 in length and breadth; eighty-four thousand lagues deep in the great ocean, and eighty-four thousand above it.
After a last vast interval, a seventh sun appears, and then, monks, this great earth, and Sineru, the monarch of mountains, flare and blaze, and become one mass of flame. ... Just as when ghee or oil is consumed and burnt, monks, neither ashes nor soot remains, so it is with the great earth and Mount Sineru. THE SERMON OF THE SEVEN SUNS
(ANGUTTARA NIKÂYA VII. 62)
Here from The Great Debate vs Christians in Sri Lanka in the last Round of the Debate the Buddhist Party defends the existence of Mt. Sineru.Saṃyutta Nikāya 56
Connected Discourses on the Truths
50. Sineru (2)
“Bhikkhus, suppose that Sineru, the king of mountains, would be destroyed and eliminated except for seven grains of gravel the size of mung beans. What do you think, bhikkhus, which is more: the portion of Sineru, the king of mountains, that has been destroyed and eliminated or the seven grains of gravel the size of mung beans that remain?”
Sorry for the format;
Here is a contemporary analysis of the Sutta;
Afaik there also seem to be supposedly legitimate accounts of such Mountain at North Pole from an early NP explorer or several of them, according to some youtube video about NP conspiracies.http://dharmafarer.org/wordpress/wp-con ... 2-piya.pdf
2. MOUNT SINERU
Historically, Sineru is probably the Himalayas, “the king of the mountains.” However, it is also possible that see
it as some kind of axis mundi, or centre of our galaxy or the universe. The ancient Indi-ans, in their cosmology, have some mythical notion that Mount Sineruis also the physical centre of their universe, which is geocentric. Here, the Sutta is alluding to the popular ancient Indian world view.