Prospecting activities in the area are conducted to determine the distribution and resources of gold deposits in the area with the purpose to provide technical input to the local district government.
These activities are carried out with geological mapping methods, such as mapping of alluvial deposits, geochemical and heavy mineral concentrate samplings and laboratory analysis of 20 active river sediment samples, 73 samples of concentrate and 20 rock samples platter.
Chemical analysis of rocks samples vary from : Cu = 5-72 ppm, Pb = 18-4160 ppm, Zn = 56-177 ppm, Ag = 0.5 - 5 ppm and Au = 18-172 ppb; whilst stream sediment samples have values range of Cu = 20-30 ppm, Pb = 9-54 ppm, Zn = 5-95 ppm, Ag = 0.5 - 1 ppm and Au = 3-30 ppb. Mineralogical analysis of grain concentrate platter shows the value varies between 0.0026 g/m3 once to 22.12 g/m3. All of gold grains from concentrate platter are found in the northern part of the Tangkeno, Wumbubangka hills.
Two types of gold deposits are found in the area, namely primary gold deposits in rock schist units which were further oxidize and resulting an enrichment of gold, and placer deposits in alluvium unit. The mineral resources of gold deposits in alluvium unit is 196,53 - 26.499,76 kg or equivalent to 26.50 tons.