black earth
Exceedingly fertile soil that covers a belt of land in northeastern North America, Europe, and Asia.
In Europe and Asia it extends from Bohemia through Hungary, Romania, southern Russia, and Siberia, as far as Manchuria, having been deposited when the great inland ice sheets melted at the close of the last ice age. In North America, it extends from the Great Lakes east through New York State, having been deposited when the last glaciers melted and retreated from the terminal moraine.
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