Locating in the northern part of the Elburz Mountains, the province is divided into three regions;
mountainous, submontane, and flat regions. The mountainous region has the altitude of 500 to 3000 meters
above the sea level and is covered with forest and grassland coverings. The northern slopes of Alborz
Mountains face to one of the main resources of humid air for Iran, Caspian Sea air masses, which have caused
formation of dense deciduous forests of the northern slopes. The submontane region includes small hills,
mounds, and heights covered by forest species. Forests consisting mainly of oak and beech. Dry and dense
vegetation, constitutes a major portion (40%) of the forests of the study area. This vegetation is especially
susceptible to fire forest.