SB 5.16.16
mandarotsanga ekadasa-sata-yojanottunga-devacuta-siraso giri-sikhara-sthulani phalany amrta-kalpani patanti.
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
On the lower slopes of Mandara Mountain is a mango tree named Devacuta. It is 1,100 yojanas high. Mangoes as big as mountain peaks and as sweet as nectar fall from the top of this tree for the enjoyment of the denizens of heaven.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
In the Vayu Purana there is also a reference to this tree by great learned sages:
aratninam satany astav
eka-sasty-adhikani ca
phala-pramanam akhyatam
rsibhis tattva-darsibhih