The park is located about 100 km north of Nairobi and stretches over a wide variety of terrains because it covers altitudes from about 7,000 feet (2,100 m) to 14,000 feet (4,300 m) above sea level. Established in May 1950, the Aberdare National Park covers an area of 766 square kilometers and forms part of the Aberdare Mountain Range. The park contains a wide range of landscapes - from the mountain peaks that rise to 14,000 feet (4,300 m) above sea level, to their deep, v-shaped valleys intersected by streams, rivers, and waterfalls. Moorland, bamboo forests and rainforests are found at lower altitudes.
Animals easily observed include the leopard, elephant, East African wild dog, giant forest hog, bushbuck, mountain reedbuck, waterbuck, Cape buffalo, suni, side-striped jackal, eland, duiker, olive baboon, black and white colobus monkey, and sykes monkey. Rarer sightings include those of the African golden cat and the bongo - an elusive forest antelope that lives in the bamboo forest. Animals such as the eland as well as spotted and melanistic serval cats can be found higher up in the moorlands. The Aberdare National Park also contains a large eastern black rhinoceros population. Visitors can also indulge in walking, picnics, in the rivers and camping in the moorlands. Even the bird viewing is rewarding, with over 250 species of birds in the park, including the endangered Aberdare cisticola, Jackson's francolin, sparry hawk, goshawks, eagles, sunbirds and plovers. It is a traditional belief of the Kikuyu that the Aberdare Mountain Range, where this park is located, is one of the homes of Ngai, or God. In order to protect the bongo antelope the lions of Aberdare have been moved to other national parks.
- Mist and rain occur throughout much of the year, with precipitation varying from around 1000mm yearly on the north western slopes to as much as 3000mm in the south east. Heavy rainfall occurs through most of the year.
- Lesatima peak, Kinangop peak, waterfalls, walks in the moorlands, Twin hills, Elephant hills and Table mountains, Second largest population of black rhinos in Salient and Northern Aberdare, Queen Elizabeth learned of her accession to the throne at Tree-tops Lodge, The Kimathi Hideout/Mau Mau caves,