The study area is located at Gunung Ayam area in Lojing district in Kelantan state with coordinates ( N 04° 48‟ 30‟‟ , E 101° 46‟ 30‟‟ ), ( N 04° 46‟ 0‟‟, E 101° 46‟ 30‟‟) , ( N 04° 46‟ 0‟‟ , E 101° 44‟ 0‟‟) and ( N 04° 48‟ 30‟‟, E 101° 44‟ 0‟‟ ). The study area consist of carbonate rock, meta-sediment and siliciclastic rock under Gua Musang Formation. This study focus on th update of the geological map of study area with scale 1: 25 000 and the structural analysis in study area. In order to fulfil the objectives of this research, a few methods had been choose which are doing field work activities and laboratory work by using petro-thin for thin section purpose. In order to gather the data regarding study area, several site visits and fieldworks had been conducted. From the result of structural analysis, main force that acting on the study area is came from the Northern part of the study area. The Gunung Ayam area also had a lot of interesting geological features such as Karst topography and conglomerate, making this area is suitable for geoheritage site in the future.