The bog is the oldest organic landscape in Estonia, reaching in some cases up to 10 000 years of age. The first bogs started to emerge here right after the last ice age. As the 1 km thick glacier ice sheet was melting towards the North pole, the meltwater as a leftover was collected in depressions previously created by the glacier ice. Over the next thousands of years, plants grew and died within those shallow and oxygen-deprived meltwater lakes. As a result, the dead plant material didn't become decomposed but rather created ever-lasting peat/turf and turned the water acidic. Every year, one layer of partially decomposed organic material is accumulated underneath the mossy surface of the bog and this effect has taken place since the very beginning!
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