[Nmcaver] Hi-tech unlocks cave scerets

[Lee H. Skinner]

"We've used several different techniques and the most successful appears 
to have been ground-penetrating radar," he said.

"It's a means of looking at the underground without going in there. Out 
behind our camp ground area, we've got a really good signal and we think 
we've been able to map what looks like a reasonable sized-cave out 
there, with several chambers, but we've never been able to get into it," 
he said.

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