Because there are both "galloping" and "running" tracks, I am thinking these are tracks from a vole . . . or maybe a shrew. According to Donald Stokes "A Guide to Nature in Winter," vole tracks are more common in the country and shrew tracks are more common in the suburbs so that adds to the idea that these tracks are probably vole tracks. These tracks were found in a small woodlot at the edge of the property that I live on. Does anyone have any other ideas re the maker?