To optimize the utilization of Indonesian coal, the research had been carried out to Hampang coal in Tanjung Formation South Kalimantan Indonesia for identifying its quality by methodology consisting of geological observation and to perform some analysis in laboratory. The observation of geological environment in the field research is by taking some samples both rock and coal as well as to identify the geological and sedimentation environment. While the laboratory research was carried of by analysing with some methods consisting of petrologycal , petrographycal, proximate, X Ray Diffraction (XRD) , Fourier Transform Infrared (FTIR), and Atomic Absorption Spectroscopy (AAS) analysis. Based on the geological observation that the Tanjung Formation on Barito Basin relating to the deposition of Tertiary sediment (Paleogene-Neogene) due to the collision process of tectonic plate of Indo Australia, Eurasia and Pacific on Cretacious period . The deposition of coal in Tanjung Formation is classified as Paleogene Post-Rift Transgression deposited in Late Eocene until Early Miocene. While based on the result of some analysis in the laboratory relating to the standard of coal classification (JIS) that this Hampang coal is classified as Lignite, and Subbituminous rank.