Moscow Canal
The North-Western Administrative Okrug was formed in 1991 from Tushinsky and Khoroshevsky (before 1990 Voroshilovsky) Boroughs of Moscow. The administrative okrug is sometimes referred to as "the lungs of the capital", as it is surrounded by the Khimki Reservoir, the Moskva River, and the Moscow Canal, with about 46% of its territory covered by natural features.