The number of known Hittite rock-reliefs in Anatolia is limited: Karabel, Manisa, Yazılıkaya, Gavurkalesi, Fıraktin, İmamkulu, Taşcı, İvriz, Gezbeli, Sirkeli, and Hemite. Except the Late Hittite relief of Ivriz, the monuments, mostly scattered on the fringe of the highland, have to be ascribed to the Imperial Age (1450–1200 B.C.). Their geographic distribution allows some conclusions as to the extent of the Hittite sphere of influence. The question of the monuments' function is but one of the numerous problems still to be solved.
Apart from the reliefs of Yazılıkaya, Gavurkalesi and Fıraktin, which are all part of a sanctuary, the majority of the monuments at first sight seem to have been put up to demonstrate political power and may be interpreted as representations of the kings (Imamkulu, Taşcı, Gezbeli, Sirkeli and Hemite) or of local dynasts (Karabel and Manisa). This applies especially to the reliefs of Gezbeli and Hemite, which in their overall conception are so designed that the political element seems to dominate over the religious. Upon closer examination, however, we must admit that this explanation applies only perhaps to some of the Imperial Age monuments; those monuments in which the kings are shown in an attitude of prayer or as gods appear to have been erected with religious motives in mind. A further indication of religious function is the fact that the monuments are often associated with water in the form of a spring or a river.