Originally Posted by Lycanthrope

I wouldn't do it in Wisconsin - especially places with terrain like most of Waukesha County. It is very rocky and prone to shifts. Couple that with the extreme changes in temperature that our sorry asses are subjected to and you will be forking out money for repairs frequently. My ex-boss' father had a similiar setup in Delafield, but grew tired of having to fix things - so he filled it in and had a game room built instead.