Abstract
Firths are geomoiphological and hydrological sites typical for flat, neutral coast of no tidal sea basins. There in the greatest extend is preserved the geological column of the correlative Pleistocene- Holocene sediments. They make possible to reveal the Quaternary evolution of the contact zone „land-sea“. Firths are one of the most reliable indicators for the Quaternary Earth crust movements.
Along the Black Sea coast most widely are developed the firths in the north - west and the west periphery, where they form a classic firth type coast.
This report examines the results of complex studies of Batova river firth, located (developed) on the North Bulgarian Black Sea coast.