The park is characterized by its pine forestland, spring brooks, and swamps.

The summit area was uncovered 9500 BCE[2] when the glacier retreated, and it has never been under the water.

[3] The summit of Lauhanvuori is lusher than its surroundings due to not having been under the sea and thus having retained its loose soil and nutrients.

[3] The park also has a hectare of fen, where Succisa pratensis, brown beak-sedge, carnation sedge, moor rush, Scottish asphodel, and many rare mosses grow.

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