The Goshinboku, the Sacred "God" Tree, or Tree of Ages is a fictional tree in InuYasha.
Location
In modern day Tokyo, Goshinboku is located near the Higurashi Shrine. In the Sengoku period, Goshinboku is located in the forest near the Bone Eater's Well.
Appearances
In the first volume of the manga, Turning Back Time, InuYasha was sealed to Goshinboku by Kikyo's sacred arrow. InuYasha spends fifty years sealed to Goshinboku before he was released by Kagome Higurashi.
Similarly, in the anime, InuYasha was sealed to Goshinboku for fifty years by Kikyo's sacred arrow until he was released by Kagome Higurashi in the first episode, The Girl Who Overcame Time... and the Boy Who Was Just Overcome. InuYasha's body was preserved by contact with the tree due to its magical powers.
Goshinboku is a crucial element of the first movie, Affections Touching Across Time.