Check out http://www.groundhawgs.com/ someone has apparently beat ya to it... well, kinda... Can't go through rock or frozen ground with the groundhawg...
A similar idea using rotary hammer is intriguing.
Neat idea.
[This message has been edited by sparky66wv (edited 05-13-2003).]
-Virgil Residential/Commercial Inspector 5 Star Inspections Member IAEI
