the sun is setting over a large field

The Porta Westfalica, also known as the Westphalian Gap, is a gorge and water gap where the Weser river breaks through the passage between the mountain chains of the Wiehen Hills in the west and the Weser Hills (part of the Weser Uplands) in the east. It is located in the district of Minden-Lübbecke in North Rhine-Westphalia, Germany.