[doc1019]

Sorry, this was a lake in Russia for sure.

http://www.unexplained-mysteries.com/forum/index.php?showtopic=41228

[UCANSEE2]

Thanks. I was looking at the lake in Russia info, while going through this thread. And someone else has posted info on an Artic Lake that disappeared.

I find them all fascinating, and if you get time, the video on Lake Peigneur is very interesting because it involves a sinkhole caused by a drilling rig.

This is one of my most favorite geological disasters.

THE DOOR TO HELL - the site of a former natural gas drilling rig IN RUSSIA where the ground caved in and left a giant pit that has been burning from the escaping natural gas for the past TWENTY YEARS.