You can help expand this article with text translated from the corresponding article in Swedish. (October 2011) Click [show] for important translation instructions.
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Trehörningen is a lake in Tyresta National Park in Stockholm County, Sweden.
Trehörningen | |
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Coordinates | 59°11′46″N 18°17′55″E / 59.19611°N 18.29861°E |
Basin countries | Sweden |