Mauna Kea
Mauna Kea ( or , ) is a dormant volcano on the island of Hawaii. Its peak is above sea level, making it the highest point in the state of Hawaii. Most of the mountain is under water, and when measured from its oceanic base, Mauna Kea is the tallest mountain in the world measuring over . Mauna Kea is about a million years old, and has thus passed the most active shield stage of life hundreds of thousands of years ago. In its current post-shield state, its lava is more viscous, resulting in a steeper profile. Late volcanism has also given it a much rougher appearance than its neighboring volcanoes due to construction of cinder cones, decentralization of its rift zones, glaciation on its peak, and weathering by the prevailing trade winds. Mauna Kea last erupted 6,000 to 4,000 years ago and is now considered dormant. The peak is only about higher than its more massive neighbor, Mauna Loa.
Upolu Point
Upolu Point is the most northern point on the island of Hawaii in the Hawaiian Islands. It is an extruding landform created by cooled lava from an old eruption from Kohala volcano. The main town on the extrusion is Hawi, Hawaii about 2 miles (3 km) inland. The main road is Akoni Pule Highway t(Hawaii state route 270) which starts at the Hawaii Belt Road in Kawaihae, along the west coast of the point, and then through the towns of Hawi and Kapaau, ending at Pololū Valley. Upolu Point also overlooks Mahukona Harbor.