Joint filed trip of ELTE and University of Miskolc project team members and students took place betwen April 8-10, 2019. Four abandoned bauxite mines (Óbarok, Gánt, Darvastó, Iharkút) and two partially re-cultivated red mud storage areas (Almásfüzítő and Ajka) were visited within WP4 activities. The visited areas were thoroughly examined for sampling (WP2 and WP3 activities), including the discussion with the owners of red mud storages.