Intervale Sea Caves: A Winter Wonderland
In the winter, the popularity of the Intervale Sea Caves is clear. A deep trough of snowy footprints leads down Arthur Park's main trail as it drops steeply down through a 10,000-year-old ice age delta whose sandy soils support a forest rich in oaks with hemlocks on the steepest slopes. The tracks turns north near a patch of alder and cattails then
continues north out over the ice wrapping around to the cave. Sometimes when the water in the caves freezes, it creates a clear window into the pond and people can see fish swimming slowly beneath the ice. Icicles hang like stalactites from the ceiling. These caves were formed in 500 million year old Dunham Dolostone as the glaciers retreated from Vermont during the last ice age. Visit the caves in winter by accessing the trailhead across North Avenue from the high school parking lot and read more about their history below.
Photo by Sean Beckett
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