cretaceous rock formations on the plateau of the divnogorsk natural reserve, voronezh

architecture belogorie cave central chalk chalky christian christianity church cretaceous diva divas divnogorie divnogorsk divnogorsky divnogorye fault finger formation formations geological grass hill john landscape male monastery monument mountain mountains museum nativity natural nature park peak pillar plateau relief remnants reserve rock russia russian sight slope steppe stone temple uspensky valley view voronezh white