It seems the these Sink Holes are happening more and more often. Just in the last few years. Here's a Video on on in What I gather is the Louisiana Swamp or a Lake there. Check out the links below too...
8/21/13 Slough in
- Sink Holes (8/21/13 Slough in)
- 8/21/13 Slough in - YouTube
- assumptionla - YouTube
- Louisiana Sinkhole Makes Waves! - YouTube
- ▶ LOUISIANA SINKHOLE and GULF of MEXICO - with VOLCANIC and SEIZMIC ACTIVITY - YouTube
- Mysterious Louisiana Sinkhole Drains Entire Lake - YouTube