The reservoir is located in the Masally Rayon of Azerbaijan.
The reservoir's volume is 46 million m3 and is a major attraction for tourists and therefore becoming a place of many hotels and resorts.
[1][2] The height of the dam is 37 meters and the overall horizontal length is 3.2 km.
[3] In 2012, President Ilham Aliyev laid the foundations of a new water supply system in Masally, using the existing Vileshchay reservoir but also building a new reservoir.
[4] According to a 2011 environmental assessment prepared by a Texas company (Aim Texas Trading), in cooperation with The World Bank, "Vileshchay Reservoir Water, is highly contaminated by the Enterococs [sic] and other microbial indicators because of the intensive breeding the stock and grazing activities in the upstreams of the river.