| 11. | The Austrian general tried to gain a bridgehead across the Aare River at D�ttingen.
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| 12. | By 1241 the Alt-Bubenberg Castle was built on the hills above the Aare river.
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| 13. | The municipality stretches from the south-east edge of Belpberg mountain to the Aare river.
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| 14. | Brienzwiler is located on both sides of the Aare River.
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| 15. | In 1909-12 a hydroelectric power plant was built on the Aare river near Kallnach.
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| 16. | The region around the Aare river was inhabited at least as early as the mesolithic.
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| 17. | The municipality is located in the Zofingen district, along a bend in the Aare river.
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| 18. | Both villages were periodically flooded by the Aare river.
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| 19. | The roads and fields around the village were often damaged when the Aare river flooded.
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| 20. | It limits the risk of flooding, particularly in the areas covered by the Aare River.
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