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Hoarfrost, Grant-Kohrs Ranch National Historic Site, 2016.

Hoarfrost occurs when an object is cooled below freezing by radiant cooling. When relative humidity in the surrounding air reaches a high percentage, must like dew in warmer months, hoarfrost can begin to appear on these subfreezing surfaces. It can become so thick at times that it appears as if snow has fallen! However, it is actually just interlocked ice crystals called hoarfrost.

U.S. National Park Service

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Grant-Kohrs Ranch National Historic Site, Code: GRKO

National Park Service Facebook Photos

Title: Grant-Kohrs National Historic Site
URL: https://www.facebook.com/Grant-Kohrs-Ranch-National-Historic-Site-127625053950700/?fref=ts

20160104

01/04/2016

Public Can View

Organization: Grant-Kohrs Ranch National Historic Site
Address: 266 Warren Lane, Deer Lodge, MT 59722

Thursday, December 8, 2016 7:16:45 PM

Thursday, August 10, 2017 12:04:26 AM

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Monday, January 1, 0001 12:00:00 AM

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Scenic