7000 Block of East Daisy Drive in Blackhawk SD I'm surprised these mines weren't discovered when they built Interstate 90 less than 100 meters away.
On Sun, Jun 21, 2020 at 11:43 AM John Brooks < john.brooks.archit...@gmail.com> wrote: > Someone's professional liability coverage is about to take a big hit. > > > > On Jun 20, 2020, at 9:07 PM, Mark <marja...@windstream.net> wrote: > > > > This is really bizarre! Fascinating story and great pics. Thanks for > sharing! > > > > Mark Ross > > > > -----Original Message----- From: Mike Flannigan > > Sent: Saturday, June 20, 2020 3:53 PM > > To: Cavetex > > Subject: [Texascavers] Gypsum Mine > > > > > > > > Cave, or mine, opens up in your front yard: > > > https://www.boredpanda.com/sinkhole-south-dakota-black-hawk-old-gypsum-mine/ > > > > > > Mike > > > > _______________________________________________ > > Texascavers mailing list | http://texascavers.com > > Texascavers@texascavers.com | Archives: > http://www.mail-archive.com/texascavers@texascavers.com/ > > http://lists.texascavers.com/listinfo/texascavers > > _______________________________________________ > > Texascavers mailing list | http://texascavers.com > > Texascavers@texascavers.com | Archives: > http://www.mail-archive.com/texascavers@texascavers.com/ > > http://lists.texascavers.com/listinfo/texascavers > > _______________________________________________ > Texascavers mailing list | http://texascavers.com > Texascavers@texascavers.com | Archives: > http://www.mail-archive.com/texascavers@texascavers.com/ > http://lists.texascavers.com/listinfo/texascavers >
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