I am not sure if I have ever seen a definitive source on ice in and out dates since it varies so much from year to year. Are you looking for historical records that list all the ice in and out dates for the past several years or are you just looking for general ideas of when ice forms in the fall and breaks up in the spring?
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Even eminent chartered accountants are known, in their capacity as fishermen, blissfully to ignore differences between seven and ten inches, half a pound and two pounds, three fish and a dozen fish. ~ William Sherwood Fox, Silken Lines and Silver Hooks, 1954