Lake PorkuniLake Porkuni is a lake in northern Estonia. It is located in the village of Porkuni in Tapa Parish, Lääne-Viru County. It is the source of the Valgejõgi River.Physical descriptionThe lake has an area of, and it has 13 islands with a combined area of. The lake has an average depth of and a maximum depth of. It is long, and its shoreline measures.