High Quality Content by WIKIPEDIA articles! Mount Elgon is an extinct shield volcano on the border of Uganda and Kenya, north of Kisumu and west of Kitale. It is the oldest and largest solitary volcano in East Africa, covering an area of around 3500 km². Other interesting[peacock term] features are: The caldera Elgon's is one of the largest intact calderas in the world The warm springs by the Suam River Endebess Bluff (2563m or 8408 ft) Ngwarisha, Makingeny, Chepnyalil and Kitum caves. Kitum Cave is over 60 metres wide and penetrates 200 metres. It is frequented by wild elephants who lick the salt exposed by gouging the walls with their tusks. It became notorious[citation needed] for its association with the Marburg virus after two people who had visited the cave (one in 1980 and another in 1987) contracted the disease and died.