Cadastre of Rivers, Lakes and Ponds of the Republic of Lithuania

The Cadastre stores data on rivers at least 3 kilometres long or with a basin area of at least 5 square kilometres; lakes and ponds with a water surface area of at least 0.5 hectares; rivers, lakes, ponds, canals and disconnected artificial surface water bodies classified as inland waters of national importance or subject to state environmental monitoring; and surface water bodies connecting the cadastral objects listed above.