This museum was opened in 2001 as the first general geological museum. It was started as a geological investigation office in 1981. It has accumulated geological samples by consistent research projects. Daejeon Expo in 1992 inspired the museum to establish a ‘geological sample hall’ inside the research center’s premises and open it to the general public. Afterwards, the interest expressed by visitors and the necessity for a systematic and professional museum on geology led to the establishment of this museum. It has a total of 3745 pieces of geological samples including 2232 pieces of mineral, 291 pieces of rocks, and 1231 pieces of fossils. The museum shows movies, hosts lectures and conducts field trips. Also, the museum provides a storing system for samples and core drilling by operating the geological sample building.