Foothill Rancher, I am told that there are a lot of old mines in the area here too, flourspar I believe. I have no plans to go back in there, at least until the guy from the DNR looks at it. Although I can't imagine him telling me that it's safe.
LBrown59, We have owned the property for only about 3 years and we moved here a little over a year ago. However the hole is in a field that I bushhog a few times a year and I made about 20 trips right over it or next to it that day. I'll be the first to admit that I miss a lot of things, but the hole is too big to of missed and I was always looking for rocks and bumps to avoid in that area. It's raining now and I'm curious what will happen once all this water gets in there.
Jeff