Salpa-suppa kettleАдрес: Terveystie 7, 15870 Hollola Показать на карте
Адрес: Terveystie 7, 15870 Hollola
In the Hollola municipal centre, right next to the services situates 15 metres Salpa-Suppa kettle hole. The kettle-hole is also easily accessible by public transport. This natural site created by the ice age, can be explored from accessible viewing platform or by descending to the bottom of kettle along the stairs or slopes on the winding paths. The stairs are also suitable for running.
Kettle holes are among the most distinctive marks of the Ice Age. They formed during the deglaciation stage of the continental ice sheet, when large blocks of ice were detached. These ice blocks were buried in the sand and gravel deposited by the glacial melt waters. As the ice melted, the land around the blocks collapsed forming the pitted kettle landscape. Salpa-suppa kettle is one of the sites of the Salpausselkä aspiring UNESCO Global Geopark.
The micro-climate of kettle holes is interesting, since cold air sinks downwards, and it can be several degrees colder at the bottom of the kettle than it is up at the edge of the kettle. This temperature difference can best be noticed in spring, when there can still be snow and ice at the bottom of the kettle, even though it has otherwise melted in surrounding areas.