Prior to the series
When Cole climbed the tallest mountain of Ninjago and found him there, Wu asked him why he had climbed the mountain. Cole told him about his grief over the loss of his mother and that he was angry with his father for spending time with his group instead of grieving. Wu replied that "grief takes many shapes and forms". When Cole then asked him why he had climbed the mountain, Wu told him that he had climbed there to find him.
- 2. "The Golden Weapon" (flashback)
- 18. "Child's Play" (TV screen)
- 76. "The Jade Princess" (flashback)
- 131. "Level Thirteen" (TV screen)
- It is unknown whether the mountain is located in the Wailing Alps, as according to Misako, the Alps are the tallest mountains in Ninjago.
- Cole arriving on the mountain top in his flashback is slightly different between the scenes in "The Golden Weapon" and "The Jade Princess", because in the original flashback the mountain was not covered with snow, other climbers climbed the mountain and Cole did not met Wu on the very top of the mountain, because there was still a high rocky wall above them, which is missing here. Wu also doesn't have his staff with him in this episode, and he made tea on the fire, unlike the small metal plate he had in the original flashback.
- "The Golden Weapon" shows other mountains nearby, which are very reminiscent of the Mountains of Impossible Height.
- This mountain and Shintaro Mountain have a metaphorical connection.