Which 10,000 M tall mountain on the Hawaii island, does the Hale Pohaku sit atop of?
Onizuka Center for International Astronomy: The Onizuka Center for International Astronomy, also known as Hale Pōhaku, is a complex of support facilities for the telescopes and other instruments that comprise the Mauna Kea Observatory atop Mauna Kea, on Hawaiʻ i island. Mauna Kea:  Much of the mountain is under water; when measured from its oceanic base, Mauna Kea is over 10000 m tall and is the tallest mountain on Earth.
Mauna Kea