- Sep 9, 2003
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Same thing happened in Michigan earlier this year in the Sand Lake area south of Adrian. A water treatment lagoon went dry overnight and they discovered a fissure in the middle of the lake bed as well but have no idea where the water has went to after that. There are no known cave structures in the imediate area but its suspected that there may be possibly an abandoned mine shaft or two though what they mining for in an area thats heavily sand I dont know. Its more likely a salt cavern like what is found under Detroit that opened up.
RT 22 in pa was being widened, they found a cave,
might be a big cave there no one ever discovered.
Blue hole closed in the 80's somewhere around 86 - 87, I had went there with family friends that we lived on the same street with during a time frame matching that period. Beleive me there wasnt much to look at other than a hole in the ground with water that was totally devoid of oxygen ( hence the blue color ) and a spiraling man made stream with a few trout in it. There was nothing else to it other than a local guy selling honey at a stand there, I went by there two years later and the place was closed.
There was one on Modern Marvals Engineering disasters on the History channel a few years back where there was a salt mine under a lake.
There was an oil company that was drilling some test holes in the lake to potentially drill for oil. Apparently they did not drill into the right spot because it went right into a salt mine shaft, and it drained the entire lake within a few hours.
Then the river that fed the lake, started to flow the opposite direction and 2 days later the entire lake was filled again.
The problem was that the entire shoreline got screwed up with the amount of water going into the sink hole.