Snail Wall

Hubby was clearing out a bunch of weeds along the back porch where we have a garden area well where we want to plant some flowers.  He has one side weeded already and put the weed guard down.  I went outside to check out how things were going and I saw it, a wall of snails!.  I don't know how there are that many out there.  It isn't like we live at any shore or near any lake. Here are some pictures of an area where a bunch were attached to the wall.  One is even in a knot hole in one of the back porch support posts. Just so weird!!