Ramsko lake () is an artificial lake (reservoir), located in municipality of Prozor-Rama, in the vicinity of eponymous town, in Bosnia and Herzegovina. Lake is created with a construction of Rama dam in 1968, on the river Rama, and it serves as a reservoir to store Rama's waters used by Rama Hydroelectric Power Station. The temperature of the lake is around .Rama - brošura (2014) (pdf); Hidroenergetski sistem sliva Neretva-Trebišnjics: HE "Rama" - JP "EP HZHB" (Bosanski/Hrvatski/Srpski)
See also List of lakes in Bosnia and Herzegovina
References
http://herzegovina.travel/blog/listings/rama-lake/