Mauna Kea

Mauna Kea (Hawaiian: Mauna a Wakea) is an inactive volcano located on the island of Hawaii in the United States. It stands 4,207 meters (13,802 ft) above sea level and its peak makes it the highest mountain in Hawaii and one of the tallest mountains in the world.

Geology
Originally formed by two shield volcanoes around 500,000 years ago, Mauna Kea has since subsided to form a dormant stratovolcano that consists primarily of cinder cones scattered along its flanks. Geologic evidence suggests that eruptions have occurred intermittently over several million years but none have been recorded within historic timescale. The most recent eruptive activity was likely dated back to about 6200 BC when fissures opened up along its east flank and lava flows were extruded for several miles towards Hilo Bay before cooling off below ground level due to groundwater intrusion.

Astro-tourism destination

Due to its location near Earth’s equator as well as high elevation with very low light pollution levels make this an ideal site for astronomical research instruments including some operated by NASA’s Jet Propulsion Laboratory such as WISE infrared telescope array which scans outer space looking for asteroids or comets threatening Earth impact events; SETI Institute Allen Telescope Array detecting radio signals from other star systems searching signs intelligent life beyond our solar system; Subaru Optical Telescope used mostly studying distant galaxies far away stars formation processes among many others mounted at top summit facility known as “Observatory Support Facility” run jointly National Astronomical Observatory Japan University California Berkeley Caltech Carnegie Institution Washington plus few more international partners who maintain their own instrumentation there too . Because visibility conditions so good here often considered premier ground based astronomy observation sites across globe attracting visitor from all over come enjoy spectacular views out into night sky through telescopes provided public tour days usually held once month between April November during dry season weather permitting those interested making reservations advance recommended secure spot these popular tours limited number participants allowed each time even though access road only open day visitors must travel four wheel drive vehicles safer navigate unpaved switchbacks way up summit however alternative option still possible hire guided jeep van ride if they not want risk driving themselves difficult terrain instead paying fee join group tour head straight observatory area itself where further proceed take pictures observe stars constellations etceteras while being surrounded amazing landscape no matter how come experience will always be unforgettable worth every effort made getting there first place something everyone should do least once lifetime!