Ключевые слова: 9 mountains, background, breznik, bulgaria, environment, europe, forest, green, kovachevtsi, kraishte, landmark, landscape, mountain, mountaineering, natural, nature, nine mountains, outdoor, panorama, park, peak, pernik, pernik region, plant, road, rudina, rudina mountain, rudini, scene, scenic, season, sight, sightseeing, sirishtnik, sirisjtnisjka, sirisjtnisjka rudina, summer, the ruiveril mountain range, tourism, tran, travel, tree, vacation,