The Aberdares are an isolated volcanic range that forms the eastern wall of the rift valley, running roughly 100km north south between Nairobi and Thomsons Falls. Soils are red and of volcanic origin, but rich in organic matter.
There are two main peaks, Ol Donyo Lesatima (3,999m) and Kinangop (3,906m) separated by a long saddle of alpine moorland at over 3,000m. From 1947 to 1956, the misty and rainy forests in the range served as a hide for the Mau-Mau guerrilla.
The park was gazetted in 1950 with an extension of 584 km², but was afterwards enlarged to 770 km², making it the third largest park in the country.
The Aberdare range, 160 km long, is located in the Central Highlands, Central Province, west of Mount Kenya and north of Nairobi, serving as the Kenyan Rift Valley’s east wall. The national park comprises a longitudinal strip from south to north, with a projection toward the east denominated The Salient, that runs down to an altitude of 2,130 m, near the town of Nyeri. The Salient has its origin in an ancient migratory route of elephants between the range and Mount Kenya.
Attractions include the Lesatima peak, Kinangop peak, waterfalls, walks in the moorlands, Twin hills, Elephant hills and Table mountains. A variety of animals will be seen & most notibly Elephants, and black rhinos. The Kimathi Hideout and Night viewing of wildlife at the Ark & Treetops are also popular.