Volga River coloured in bright green, Russia
					Sentinel-2 MSI acquired on 08 August 2016 at 08:00:12 UTC
				
				
				
				
								
					Keyword(s): Water colour,  water quality,  pollution,  agriculture,  river,  reservoir lake,  dam,  Russia
				
			
					The Volga is the longest river in Europe with 3531 km, flowing from an altitude of 228 m to -28 m. It is also Europe's largest river in terms of average discharge at delta at 8000-8500 m3/s and of drainage basin with a catchment area of 1 360 000 km².
Samara reservoir, a 550 km long reservoir created by the Samara dam: with its 6450 km² surface area, it is the largest reservoir in Europe. The Kama River joins the Volga by flowing into this lake.