On Thursday, July 04 2019, the Faculty of Geography UMS held a public lecture with Dr. Widiyastuti from UGM. The activity was carried out at the Pramesthi Hotel, Kartasura from 09.00 to 11.50 WIB. The number of participants in this activity reached 286 consisting of students and lecturers of the Faculty of Geography. The theme of this public lecture is “Mineral Resources and Karst Rocks between Ecological Potentials and Threats in Indonesia”. Materials can be downloaded here