
Smooth edged hole, sometimes disfigured, in the top of the mole tunnel is most likely erosion and is a good sign the mole is not using that tunnel system any longer.
Holes dug at the edge of sidewalks, patios and other structures and surfaces are the beginning of what could be an extensive undermining project by chipmunks. They also will enter crawl spaces through crawl vents with damaged screens or other holes and cracks in foundations.




