In the process it uncovered evidence that that these lakes may be remnants of a peat bog that formed during the last ice age. The Forestry Bureau report on the lakes notes that peat bogs are found mostly in Russia, Finland, Canada and Ireland, and cover about 3 % of the world's land surface. A precious natural legacy, many a rare plant species is making its last stand here.
根據林務局調查顯示，這類沼澤地形主要分佈在俄羅斯、芬蘭、加拿大、愛爾蘭，約占全世界陸地面積 3 %，是相當珍貴的自然遺產，也是許多稀有物種賴以維生的重要區域和最後避難處。