Frost Leaves

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Frost crystallizing on a twig next to a waterfall
Darien, Illinois


Feather-like crystals of ice on the surface of the stream
Darien, Illinois

The temperature around Chicago dropped last weekend, sending windchills down to minus 20 degrees. This cold air combined with the relatively warm, flowing waters of Sawmill Creek (warm meaning around 34 degrees!!) created some very interesting ice and frost growth in and around the waterfalls in Waterfall Glen forest preserve.

I managed to keep warm enough for a hike to the stream and the falls and found this interesting growth of frost on a twig about 4 inches long.

Probably the only nice thing about cold weather.....

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