Kilimanjaro: a deep dive into Africa's highest volcano
Kilimanjaro is best known as the highest mountain in Africa, but it is also a giant stratovolcano: three coalesced cones — Shira, Mawenzi and Kibo — that rise as a single massif from the plains of northern Tanzania to a summit at 5,895 metres. The mountain is dormant, not extinct, with active fumaroles near the summit and a history that stretches back about a million years.
Three volcanoes that became one
Shira is the oldest cone, now collapsed into a high plateau on the western side. Mawenzi is a jagged, severely eroded peak to the east. Kibo is the youngest, still a near-perfect crater capping the summit. The three together form a shield-like profile that rises in isolation from the surrounding savanna, visible from over a hundred kilometres away on a clear day.
A dormant giant
Kibo has not erupted in modern times, but it is not extinct. Fumaroles still vent sulphur near the summit crater. The most recent significant volcanic activity is estimated at around 200,000 years ago, with smaller events much more recently. Geologists classify Kilimanjaro as dormant — sleeping rather than dead.
Shrinking summit glaciers
The famous "snows of Kilimanjaro" are vanishing. The summit's glaciers — Furtwängler, Northern Icefield, Southern Icefield — have lost more than 85 percent of their 1912 area. Most models project total loss within decades, ending one of the most photographed and literarily celebrated icefields in the tropics.
Climbing routes
The seven established routes — Marangu, Machame, Lemosho, Rongai, Umbwe, Shira and the Northern Circuit — each offer a different balance of crowds, scenery and acclimatisation. Machame and Lemosho are the most popular. Roughly 30,000 to 50,000 trekkers attempt the summit each year; success rates vary from about 50 to 85 percent depending on route and itinerary length.
Five climate zones in one walk
The climb passes through bushland, rainforest, heath and moorland, alpine desert, and arctic summit zone — a vertical transect of ecosystems that few mountains anywhere can match. The lower forests host elephants, monkeys and leopards; the alpine zone has giant groundsels and lobelias found almost nowhere else.
Local meaning and economy
Chagga communities have lived on Kilimanjaro's slopes for centuries, farming coffee and bananas in the rich volcanic soils. The mountain also supports a tourism economy that runs into the tens of thousands of jobs in northern Tanzania. Park fees fund much of the regional conservation budget.
Why Kilimanjaro matters
Kilimanjaro is at once an active volcanic system, a climate-change witness, a cultural landmark and one of the planet's most ambitious non-technical climbs. Few mountains anywhere compress so many roles into a single profile on the horizon.
On the map
Open the map and find Kilimanjaro just south of the Kenyan border in northern Tanzania, west of Mount Meru and east of the Amboseli plains.