Ormputten is a pseudo-lakeBy Swedish definitions, water surfaces smaller than 10 000 m2 are not lakes. in Stockholm County, Södermanland, Sweden. It is slowly retracting, and may soon become a bog. The water surface is very small, fairly round in shape, surrounded by quagmire and strongly acidic with a pH of about 3.9. The lake is situated in the Paradiset nature reserve, and requires a short hike through pathless terrain to access.
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