A distinctive property of this special kind of fluid ice (which is formed in agitated water from droplets freezing in the air) is the way it can clump together and accumulate downward until it completely dams the flow of the river, causing the water level to rise and deposit the masses of ice along the shore. By the end of winter, these ice deposits can reach a depth of ten feet or more.
While looking down at the river from the bridge, I suddenly noticed a dark furry creature climb out from a hole in the ice near the bank and bound across the ice and run under the bridge. For an instant I thought I had witnessed a squirrel escaping from drowning, but then I realized that it must have been a mink. Of course, my camera was still in my pocket!