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Any of my southern neighbors live on top of these?

Kids discover underground treasure: a cave in Bexar County
http://www.wfaa.com/news/texas-news/195600681.html" onclick="window.open(this.href);return false;

That's too cool. I wonder if someone will explore them.

Sounds like a giant sinkhole to me.

We have two cave entrances on our place. The holes aren't large enough for a person but that could be remedied.

We also live near a tour cave and suspect ours are connected to it. Certain times of the year bats will roost in our cave.