
thumb|250px|Imatrankoski rapids Imatrankoski (The Imatra Rapids) are rapids on the Vuoksi in Imatra, Finland. It has been a famous tourist attraction since the late 1700s. Imatrankoski is also one of the National landscapes of Finland. Since 1929, the rapids have been blocked by a dam as the Imatra hydroelectric plant began operation. Today, the dam is opened daily between June and August (Wednesday to Sunday, at 18:00) as well as on Christmas Day and New Year's Eve.
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thumb|250px|Imatrankoski rapids Imatrankoski (The Imatra Rapids) are rapids on the Vuoksi in Imatra, Finland. It has been a famous tourist attraction since the late 1700s. Imatrankoski is also one of the National landscapes of Finland. Since 1929, the rapids have been blocked by a dam as the Imatra hydroelectric plant began operation. Today, the dam is opened daily between June and August (Wednesday to Sunday, at 18:00) as well as on Christmas Day and New Year's Eve.
== Geological history == The Vuoksi and Imatrankoski were born about 5,000 BP as the waters of the Saimaa Lake penetrated the Salpausselkä end moraine due to post-glacial rebound, forming a river flowing first into the Gulf of Finland and then to Lake Ladoga.
2 mapped locations
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).