Mauna Kea Volcanic Monument | High-altitude observatories and volcanic landscapes atop Mauna Kea

Mauna Kea Volcanic Monument is a high-elevation mountain in Hawaii known for world-class astronomy observatories and cultural significance.

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Geography

Continent	North America
Region	Hawaii
Subregion	Hawaii Islands
Country	United States
State	Hawaii
County	Hawaii County
Timezone	PacificHonolulu
Latitude	19.82
Longitude	-155.47
Maps	Google Maps Apple Maps

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Mauna Kea is a dormant shield volcano rising over 4,200 meters above sea level on the Big Island of Hawaii. It is one of the best astronomical observation sites on Earth, home to multiple state-of-the-art telescopes and a globally protected araucaria-dominated alpine ecosystem. Visitors access the summit via guided tours or the paved Mauna Kea Access Road, but should be prepared for extreme altitude and rapidly changing weather. Below the summit, alpine tundra transitions to subalpine and rainforest zones, offering varied short hikes and cultural sites. Respect the land, follow park protocols, and prioritize safety at high altitude and in near-desert conditions.

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