Mlima Kenya
Mlima Kenya ni volkeno rusu iliyoumbwa takriban miaka milioni 3 baada ya kuumbika wa Bonde la Ufa. Umekuwa na theluji kwa maelfu ya miaka. Theluji hiyo hufanya kuwe na mmomonyoko unaosababishwa na barafuto na kutengeneza mabonde. Barafuto zimepungua kutoka 18 hadi 10. Mlima huu ni chanzo muhimu cha maji kwa Kenya.
Kilimanjaro (Volkeno)
Tarehe 6 Oktoba 1889 Hans Meyer alikuwa mtu wa kwanza anayejulkikana kupanda mlima na kufika hadi kilele cha Kibo. Alichagua jina la "Kaiser-Wilhelm-Spitze" ("Ncha ya Kaisari Wilhelm"). That name apparently was used until Tanzania was formed in 1964, when the summit was renamed "Uhuru", meaning "Freedom Peak" in Kiswahili.