Mount Elgon is a massive solitary volcanic mountain on the border of eastern Uganda and western Kenya. Its vast form, eighty kilometers in diameter, rises 3070m above the surrounding plains, providing welcome relief in more than one sense of the word. Its mountainous terrain introduces variety to an otherwise monotonous regional landscape. Its cool heights offer respite for humans from the hot plains below and its higher altitudes provides a refuge for flora and fauna.
Mount Elgon has been regional landmark for a long time: this extinct volcano is one of Uganda's oldest physical features, first erupting around 20 million years ago. It was once Africa's highest mountain, towering above Kilimanjaro's 5895m. Millennia of erosion have reduced its height to 4321m, relegating it to 4th highest peak in East Africa (and 7th on the continent). However, its 4000km2 surface area is still the largest base of any volcanic mountain worldwide.