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Island of Hawaiʻi, Hawaii (Hawaiʻi Volcanoes National Park) · USA
Mauna Loa
Mauna Loa is Earth's largest active volcano by mass and volume, a massive shield volcano that forms much of the Big Island of Hawaiʻi and rises more than 9 km from the surrounding seafloor. Its gently sloped summit holds the Mokuʻāweoweo caldera and sits barely 38 m lower than neighboring Mauna Kea. Most of the mountain lies within Hawaiʻi Volcanoes National Park, and while it remains an active, closely monitored volcano — it last erupted in late 2022 — it has been quiet since, and its summit trail remains a demanding but non-technical high-altitude hike.
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Provenance
How we verified this
Elevation, prominence, coordinates and first-ascent facts are checked against published references and official sources. Where a fact isn't clearly documented, we show it as unknown rather than estimate.
Photography via Wikimedia Commons under its respective licences — the same sourcing standard as the resort photos elsewhere on the site.