Prespa, Lake(prĕs`pä), Albanian Prespës, Macedonian Prespansko, 112 sq mi (290 sq km), SW Macedonia, NW Greece, and E Albania; highest lake (alt. 2,798 ft/853 m) of the Balkans. It is connected with Lake OhridOhrid, Lake,
Albanian Ohrit, deepest lake of the Balkans, c.130 sq mi (340 sq km), on the Macedonia-Albania border. It is connected with Lake Prespa by underground channels and is drained to the north by the Black Drin River.
..... Click the link for more information. by underground channels. The smaller Mikrí Prespa Lake is nearby; it lies in Greece and Albania.