Altitude: 2962 m.a.m.s.l.
An active volcanic mountain located in the northern Arusha region of Tanzania. It is the third highest mountain in the Tanzania, with its eruptions uniquely producing natrocarbonatite lava. It's eruption in 1960 lead to geological investigations that finally confirmed that carbonatite rock is derived from magma.
Its name translates to 'the mountain of God', a phrase that originates from the local Masai language, a name dubbed due to its constant activity and rumbling throughout the years. Hiking to the top of the mountain is possible, but requires explicit care and the assistance of a guide or a tours company, mainly for safety reasons. Some climbers have been known to walk down into the crater and a lot closer to the molten lava flows, however any climbing is done at your own risk.
The lava of Ol' Doinyo has a different mineral composition from that of other lava, making it erupt at relatively low temperatures of approximately 510 degrees Celcius (950 degrees Fahrenheit), a temperature so low that it appears black in colour, rather than having the red glow that is common to most lava.
Its lava is also much more fluid than common lava and often less viscous than water. However, once it has erupted, it quickly turns from black to gray in colour, resulting in a volcanic landscape is different from any other in the world.
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Best time to visit
Any time of the year, with more emphasis towards the dry season of July to December every year - when the roads are more pliable.
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