“…These territories have a large number of environmental problems, causing an increase in the areas of disturbed lands: open pits, an increase in the number of mining and processing factories, degradation of agricultural and forest lands due to anthropogenic activities and erosion processes, active seismic processes, mudflows and avalanche hazard. KEYWORDS: remote sensing data, GIS, dynamic maps, maps of disturbed lands, disturbed land monitoring 1 Saint Petersburg State University, Institute of Earth Sciences, Universitetskaya nab., 7-9, 199034, St-Petersburg, Russia; e-mail: ovartemyeva@mail.ru 2 Saint Petersburg State University, Institute of Earth Sciences, Universitetskaya nab., 7-9, 199034, St-Petersburg, Russia; e-mail: aleksandrbakulev@yandex.ru 3 Saint Petersburg State University, Institute of Earth Sciences, Universitetskaya nab., 7-9, 199034, St-Petersburg, Russia; e-mail: qlnat@mail.ru 4 Saint Petersburg State University, Institute of Earth Sciences, Universitetskaya nab., 7-9, 199034, St-Petersburg, Russia; e-mail: s.tjurin@spbu.ru…”