remains of the ramparts and the moat of the mayak fortress, divnogorsk nature reserve

alan ancient architecture belogorie central ditch diva divas divnogorie divnogorsk divnogorsky divnogorye fault finger formation fortification fortress geological grass hill landscape line mayak mayatskay moat monument mountain mountains museum nature park peak plateau ramparts relief remains reserve rock russia russian settlement shaft sight slope steppe stone valley view voronezh