|Calimani Mountains cover an area of about 2000 sq. km. laying from north to east on 60 km. It is an immense andhesytic barrier between the two former provinces, Moldavia and Transylvania.
Mountain with volcanic origins, Calimani is the biggest crater (without activity) in Europe, measuring about 10 km in diameter. The highest peak is Pietrosul Calimani (2103 m), but there are also other formations more than 2000 m height, like Retitis, Calimani Izvor, Calimani Cerbuc.
Forests are the main habitats, consisting of Norway spruce, beech, and Arrola pine, while upper lands are covered with scrubs like dwarf pine, alpine rose, alpine blueberry and hackleberry.
Jnepenis cu Pinus cembra Scientific Reservation lays on 384,2 ha. It shelters a natural mixed forest with spruce and Arrola pine, with high scientific and ecological value.
12 Apostles Natural Reservation hosts interesting and mysterious rock formations, "sculptured" by weather during time.
Iezerul Calimani Natural Reservation preserves the natural elements of vegetation and a beautiful lake bordered with dwarf pine and alpine rose, called Iezerul Calimani.
The unusual landscape of a sulphur quarry surprises the visitor who hikes the Calimaniís rim. The nude ground is so different compared with the Scientific Reservation situated in the immediate neighborhood.