From Stamps of the World
Riel is a village in the municipality of Goirle, south of Tilburg in the province North-Brabant. Until 1997 it belonged to the municipality Alphen en Riel. On the east it is bordered by the stream valley of the river Donge, on the west by the deactivated railroad Turnhout- Tilburg.
Read more @ https://en.wikipedia.org/wiki/Riel,_Goirle