Abstract The occurrence of mass removal phenomena has generated large losses in economic, infrastructure and human lives in various parts of the world. These events are closely related to the anthropic intervention that is made to areas of high geomorphological susceptibility. The Municipality of Ocaña, Norte de Santander, Colombia, is no stranger to this problem because its hillside areas, especially those of the urban perimeter, are very susceptible to suffer from landslides, due to topography, geomorphological susceptibility, soil conditions, deforestation levels, winter periods and above all the incessant growth of human settlements made up of displaced and rural population seeking better living conditions in the city. The purpose of this research is to have more detailed information on the conditioning and triggering factors of the problems due to phenomena in mass removal that present the hillside areas of the city of Ocaña, Colombia.