This Cache is a fairly tough one here in Libertyville. No tools required, and a little tip: It's NOT on/next to the sidewalk. :)
[First To Find: Happcachers. Congratulations!]
This is yet another one of my clever hides. You will not need any tools to find this Cache, just some sharp senses. Try feeling around a bit. Once you find it, try to replace it as best you can. Happy Hunting!