Sibiloi National Park was established in 1973 for the protection of wildlife and paleontologist sites. The park covers 1,570 km2 (610 sq mi) of semi-desert and open plains. It is flanked by volcanic formations, which include Mount Sibiloi.

The region is known as the 'cradle of mankind' and the park features several sites, where archaeological discoveries have contributed to the understanding of the history of human evolution. One of the most important of these sites is Koobi Fora, where numerous fossil remains of early humans have been found. The Koobi Fora Museum exhibits several of these finds, although the most important ones are on display in the National Museum in Nairobi.

The remains of a petrified forest are located on the flanks of Mount Sibiloi.

There are camping and short-stay facilities in Sibiloi National Park, but it is also possible to stay in North Horr, 150 km to the southeast.

Sibiloi National Park is located in the north of Kenya, on the wild and rugged northeastern shore of Lake Turkana, some 555 km north of Nairobi.

The park was listed as a UNESCO world heritage site in 1997.