Our world changes when the temperature drops below freezing.
In Wyoming that can mean sub-zero days and nights for a week at a time.
Ice fishermen love it.
It's a silent world on the Alcova Reservoir in the middle of winter.
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The Natrona County Sheriff's Office recently posted a video of an ice rescue training that they performed last year with the Natrona County Fire District.
"As soon as I saw it start separating, I yelled at everybody, trying to tell everybody to get off the ice," Jay Fountain told K2 Radio News. "At that point, it had been like, maybe three minutes and it was already way too far. Nobody could get off."