Hawaii Volcanoes National Park, on Hawaii's southeastern shore, is home to two active volcanoes, Mauna Loa and Kilauea. Impressively, Mauna Loa is the largest active volcano in the world. This photograph from the 1950s shows a tourist reading a warning notice by the rim of Halemaumau, the volcano’s most active vent which collapsed in 2018. The Hawaii Volcanoes National Park wasn’t established until 1961 – before this, it was part of Hawaii National Park.

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