The Lava That Turns White

Ol Doinyo Lengai erupts lava at just 540 to 593 degrees Celsius.

Ol Doinyo Lengai is an active stratovolcano in northern Tanzania.

The Maasai people call Ol Doinyo Lengai the Mountain of God.

Ol Doinyo Lengai erupts natrocarbonatite, the least viscous lava on Earth.

Fresh Ol Doinyo Lengai lava looks like dark mud during daylight.

Within hours, the dark lava turns white.

The symmetric cone rises more than 1,800 metres above the rift valley.

Two craters sit on either side of the summit ridge.

Ol Doinyo Lengai releases about 80 kilograms of carbon dioxide per second.

A large explosive eruption began on 4 September 2007.

Since 2016, a seismometer and GNSS stations monitor Ol Doinyo Lengai.

Ol Doinyo Lengai is the only active volcano in the Gregory Rift.