Mount Longonot is a stratovolcano located southeast of Lake Naivasha in the Great Rift Valley of Kenya, Africa.

The whole tour (gate-around the rim-gate) of 13.5 km takes about 4–5 hours allowing for necessary rest breaks - parts of the trail are heavily eroded and very steep.

Longonot is a stratovolcano which contains a large 8.52 x 12 km caldera formed by vast eruptions of trachytic lava some 21,000 years ago.

The mountain is home to various species of wildlife, notably plains zebra, giraffe, Thomson's gazelle, buffaloes and hartebeest.

[4] On March 21, 2009 bush fires burned up the side of the mountain and descended into the crater, trapping wildlife and feeding on drought-ravaged brush.