The Mauna Kea Summit Road (known as John A. Burns Way) provides access to the Onizuka Center for International Astronomy (at elevation then climbs Mauna Kea past the Mauna Kea Ice Age Reserve to the height of at grades averaging 17% making this the third highest public road in the United States. The road is long, of which the first 6 miles (to the Onizuka Center) and the last are paved. Puu Wēkiu is the highest point in Hawaii at and is home to Poliahu, Goddess of Snow. Mauna Kea Observatory on the summit, an ideal location for astronomical seeing, is under the jurisdiction of the University of Hawaii Institute for Astronomy.