The Atyap people (Tyap: A̱tyap, singular: A̱tyotyap; Hausa exonym: Kataf, Katab) are an ethnic group found majorly in Zangon-Kataf, Kaura and Jema'a Local Government Areas of southern Kaduna State, Nigeria. They speak the Tyap language, one of the Central Plateau languages. The Atyap occupy part of the Nok cultural complex in the upper Kaduna River valley, famous for its terra-cotta figurines. Several iron smeltinɡ sites have been located in Atyap area. Most of these were found in the area of Gan and nearby settlements. The remains include slag, tuyeres and furnaces. In two sites in the Ayid-ma-pama (Tyap: A̱yit Mapama) on the banks of the Sanchinyirian stream and banks of Chen Fwuam at Atabad Atanyieanɡ (Tyap: A̱ta̱bat A̱ta̱nyeang) the slaɡ and tuyeres remains were particularly abundant in hiɡh heaps. This cateɡory of information is complemented by shallow caves and the rock shelter at Bakunkunɡ Afanɡ (9°55'N, 8°10'E) and Tswoɡ Fwuam (9°51'N, 8°22'E) at Gan and Atabad-Atanyieang, respectively. The same study reveals several iron ore mining pits (9°58.5'N, 8°17, 85'E). More such pits have been identified in later search, suggesting that iron ore mining was intensive in the area. Achi (2005) states that the Atyap speak a language in the Kwa group of the Benue-Congo language family. Furthermore, according to Achi et al. (2019), the Kataf Group (an old classification) to which Tyap language belongs, is a member of the eastern Plateau. He went further to suggest that by using a glotochronological time scales established for Yoruba and Edo languages and their neighbours, the separation of the Kataf Group into distinguishable dialects and dialect clusters would require thousands of years. Also mentioned was that, 'Between Igala and Yoruba language, for example, at least 2,000 years were required to develop the distinction, while 6,000 years were needed for the differences observable in a comparison of Idoma and Yoruba language clusters', noting that this indicates that 'even within dialect clusters, a period of up to 2,000 years was needed to create clearly identifiable dialect separation and that it is thus a slow process of steady population growth and expansion and cultural differentiation over thousands of years'.