By far the most abundant prints I found were left by small mammals. They came in a wide variety of types from bounding prints with lines down the center left by a dragging tail to almost featureless troughs like this that terminate at holes. The animal that left this print ran above the snow for some distance and then plunged under the snow to tunnel under the surface for some distance before reemerging. These prints went on and on and on into the distance and were everywhere. This is where identification get tough. I think these troughs and their associated holes and tunnels are the work of shrews, but part of me thinks they could also be vole. I’ll need to do some study on this!