Porrassalmi museum road
The section of the road between Porrassalmi and Annila on the esker ridge was defined as a museum road in 1982. Porrassalmentie road is included in the nationally significant built cultural environments inventoried by the Finnish Heritage Agency as part of the Porrassalmi cultural landscape. The museum road is a popular tourist destination, especially for those interested in the history of Porrassalmi.
More information on the museum road can be found on the Finnish Heritage Agency’s website (in Finnish)
Geologically, the Porrassalmi esker and the Kaihunharju and Kalevankangas area to the north are part of a long stretch of eskers running north-south that continues southwards all the way to Savitaipale, where it ends at the Second Salpausselkä. The esker terrain was deposited by a glacial river that flowed in a tunnel channel underneath the continental ice sheet and in cracks in ice masses over the fractured bedrock.
Ice blocks detached from the continental ice sheet and were buried in the sand and gravel sediments of the Porrassalmi esker ridge. Over time the ice blocks melted away and left behind kettle holes, which can be ponds, swamps, or grow forest. One such kettle pond is Reuhkalampi, which can be seen in the 360 image of Porrassalmi
Image: Kaisa-Maria Remes