Hauhungatahi is an eroded

volcano A volcano is a rupture in the Crust (geology), crust of a Planet#Planetary-mass objects, planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and volcanic gas, gases to escape from a magma chamber below the surface. On Ear ...

at the southern end of the Taupo Volcanic Zone in

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...

, located about WNW of

Mount Ruapehu Mount Ruapehu (; ) is an active stratovolcano at the southern end of the Taupō Volcanic Zone and North Island volcanic plateau in New Zealand. It is northeast of Ohakune and southwest of the southern shore of Lake Taupō, within the Tongari ...

. Although relatively little-known, at Hauhungatahi is one of the highest volcanoes in New Zealand, exceeded in

elevation The elevation of a geographic location is its height above or below a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface (see Geodetic datum § Ver ...

by only Ruapehu, Taranaki/Egmont (including Fanthams Peak), and the Tongariro massif (including Ngauruhoe). The volcano is constructed atop an upfaulted block of

Mesozoic The Mesozoic Era ( ), also called the Age of Reptiles, the Age of Conifers, and colloquially as the Age of the Dinosaurs is the second-to-last era of Earth's geological history, lasting from about , comprising the Triassic, Jurassic and Cretace ...

marine sediments Marine sediment, or ocean sediment, or seafloor sediment, are deposits of insoluble particles that have accumulated on the seafloor. These particles have their origins in soil and rocks and have been transported from the land to the sea, mainly ...

. The age of the erupted

andesite Andesite () is a volcanic rock of intermediate composition. In a general sense, it is the intermediate type between silica-poor basalt and silica-rich rhyolite. It is fine-grained (aphanitic) to porphyritic in texture, and is composed predo ...

lava is about 900,000 years, making Hauhungatahi more than three times as old as the neighboring Ruapehu. The volcano is located in the western part of

Tongariro National Park Tongariro National Park (; ) is the oldest national park in New Zealand,Department of Conservation"Tongariro National Park: Features", retrieved 21 April 2013 located in the central North Island. It has been acknowledged by UNESCO as a World H ...

. The terrain surrounding Hauhungatahi and covering an area of has been managed as a Wilderness Area since 1966, one of two such officially designated areas within the park. The standard ascent route on Hauhungatahi is a

tramp A tramp is a long-term homeless person who travels from place to place as a vagrant, traditionally walking all year round. Etymology Tramp is derived from a Middle English verb meaning to "walk with heavy footsteps" (''cf.'' modern English ''t ...

from the west side starting near Erua, following remnants of an old track in places, and bush-bashing through several overgrown and boggy areas to reach the bush line near on the summit plateau. Slightly easier travel continues eastward to the true summit, which provides panoramic views of neighboring peaks throughout the park including Ruapehu, Ngauruhoe, and

Tongariro Mount Tongariro (; ) is a compound volcano in the Taupō Volcanic Zone of the North Island of New Zealand. It is located to the southwest of Lake Taupō, and is the northernmost of the three active volcanoes that dominate the landscape of th ...

References

Tongariro Volcanic Centre Volcanoes of Manawatū-Whanganui {{ManawatuWanganui-geo-stub

See also

References