Geospatial data for the borders of the national parks were created by field identification and cartographic digitization, topographic maps at a scale of 1:25000 and orthophoto bases at a scale of 1:5000 were used as the spatial basis. Mavrovo National Park was proclaimed by a Law of the National Assembly of the People's Republic of Macedonia at the session of April 18, 1949 and was re-proclaimed in accordance with the Law on Amendments to the Law on Proclamation of the Forest Areas around Mavrovo Field as a National Park (Official Gazette of the SFRY, No. 23 of April 23, 1952). Pelister National Park was proclaimed by a law adopted by the Presidium of the People's Republic of Macedonia on November 30, 1948. In December 2007, by a special law, part of Mount Baba with the peak Pelister was again proclaimed a national park. Galichica National Park was declared a national park in 1958 in order to preserve the flora and fauna and the natural appearance of the Galichica Mountain, and in accordance with the Law on Nature Protection and the carried out revaluation