You might try contacting the IIAR. They are really up on all the current things including regulations. I will be glad to help just drop me a line. I will try to get some addresses and phone numbers together for you. <A HREF="mailto:Maintreinc@aol.com">Maintreinc@aol.com</A><br>
I have a friend who has been locating abondoned mine shafts using aerial thermography. He flys over the property looking for cooler air coming from the ground in realation to surface temperature. He has had fairly good luck doing this.
