The culture thus extended northeast from the Danube river basin around the Iron Gates to the Black Sea and the Dnieper. It encompassed the central Carpathian Mountains as well as the plains, steppe and forest steppe on either side of the range. Its historical core lay around the middle to upper Dniester (the Podolian Upland). During the Atlantic and Subboreal climatic periods in which the culture flourished, Europe was at its warmest and moistest since the end of the last Ice Age, creating favorable conditions for agriculture in this region.