Approximately how long is the narrow stretch of the Moselle River valley dedicated to Luxembourg's wine production?
Answer
Roughly 42 kilometers
Luxembourg's wine industry is geographically concentrated along a highly specific and relatively short section of the Moselle River. The text specifies that this key production area encompasses a narrow stretch measuring approximately 42 kilometers in length. This limited geographic footprint underscores the notion of quality over sheer volume, setting it apart from the vast vineyards of larger neighboring countries like France and Germany. The AOC rules further restrict production within this defined zone.

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