Exposed Anchor Ice on the Kananaskis River, AB (Canada), Nov. 26, 2012
Anchor ice occurs frequently on the Kananaskis River - it forms when suspended frazil ice adheres to the stream bed. Because the river is regulated for hydro-power production, water levels vary substantially over the day, each day. This leaves anchor ice exposed at low flow.
(Photo by Vincent McFarlane: Canon PowerShot SD4500, f/3.4, ISO – 160, FL 6mm, 1/320 sec. exposure duration)