Story breaks about "untouched Black Hills cave"

Media from around the globe carried a story last weekend (6/7/15) about an "untouched" Black Hills cave that was discovered by the U.S. National Park Service in 2004 — but only now is being fully investigated by scientists.  Although the specific site hasn't been revealed, officials did divulge that it's in the vicinity of Wind Cave.  Here's a link to the full ABC News story about "Persistence Cave".