Anchor ice on the West Salmon River, Newfoundland (Canada), January 18, 2011
Sometimes river ice grows up from the bottom, instead of down from the top. This happens when particles of frazil ice stick to rocks and boulders on the bed of the river. This photo, taken with a game camera set up by grad students Jen Nafziger and Janelle Morley, captures the first signs of anchor ice on the West Salmon River in January 2011.
(photo by UofA River Ice Group: Reconyx game camera, ISO-80, 1/120 sec. exposure time)