The Upper Polezhan Lake is situated at an altitude of 2,710 m at about 200 m southwest of Polezhan. It has elliptical shape, with length of 60 m, width of 50 m and area of 2,200 m2.[1] It is considered by many sources to be the highest lake in Pirin, Bulgaria and the Balkan Peninsula.[1][4][5][6] However, according to the large-scale topographic map of Bulgaria 1:5000 the lake is at 2,705.6 m, making the Icy Lake of the Musala Lakes in the Rila mountain range the highest in Bulgaria and the Balkans.
The Lower Polezhan Lake is at an altitude of 2,466 m at 600 m southeast of the upper lake. It is larger, with elongated shape, length of 160 m, width of 100 m and area of 11,800 m2.[1][7]
There is also a small non-permanent lake between the upper and the lower lake at an altitude of 2,650 m, which dries out in summer.
Георгиев (Georgiev), Владимир (Vladimir); et al. (1986). Енциклопедия България [Encyclopaedia Bulgaria] (in Bulgarian). Vol. V. P-R. Sofia: Издателство на БАН (Bulgarian Academy of Sciences Press).
Мичев (Michev), Николай (Nikolay); Михайлов (Mihaylov), Цветко (Tsvetko); Вапцаров (Vaptsarov), Иван (Ivan); Кираджиев (Kiradzhiev), Светлин (Svetlin) (1980). Географски речник на България [Geographic Dictionary of Bulgaria] (in Bulgarian). София (Sofia): Наука и култура (Nauka i kultura).
Душков (Dushkov), Добри (Dobri) (1972). Пирин. Туристически речник [Pirin. Tourist Dictionary] (in Bulgarian). София (Sofia): Наука и култура (Nauka i kultura).
Малчев (Malchev), Малчо (Malcho); Сотиров (Sotirov), Чавдар (Chavdar) (2015). Планински туризъм [Mountain Tourism] (in Bulgarian). Shumen: Университетско издетелство "Епископ Константин Преславски" (Shumen University Press). ISBN978-954-577-899-5.
Perry, Julian (2010). Walking in Bulgaria's National Parks. Cicerone. ISBN978-1-85284-574-2.