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http://www.undergroundozarks.com/forum/viewtopic.php?t=154&sid=488773163e70acf897c66cdf3c4ce023
Devil's Den Pond
Pretty picture. It's been some 30-odd years since I last saw it. It's really filled up. Back then the pond was a good 60-80 feet below the surrounding surface. It was real tricky getting down to it but then we were young and indestructable.
The civil defense director in Springfield once told me that Green County has more caves than any county in the U.S. Recall the measurement was in "cave miles" or something. The whole area is honey combed with some very deep caves. Also, the old man I spoke of mentioned the pond became fabled (again) in the 1930's as the region's most reliable water source.
There is another curiosity in the area near Denison, TX (located about an hour north of Dallas) on the Red River. About 10-15 years ago divers exploring caves in adjacent lakes came across what they believed to be a prehistoric fish. Apparently fairly large and/or scary looking because it scared the tar out of the divers. It made the news. Not long afterward someone sent me a copy of a newsphoto of a really weird looking fish/creature that a fisherman reeled in. There was some dispute over whether it was the same type or size of fish/creature the divers came across. I can, however state factually that after seeing the pix I would have fled too. Unfortunately I can't remember where I just put my glasses much less that clipping. Last I heard, divers were still doing a lot of exploration, so they must have found lots of interesting stuff.
Incidentally, this is near the area where the so-called "Phoenecian Oven" was discovered on a small mountain after a flood in southern Oklahoma during the late 1990's. The whole region is full of odd places and strange stories, including the old coal mines at Coalgate, OK, and Hugo, an old Indian trading post in the southeast corner of the state. Nearby Antlers, OK, was once hit by a tornado that was out of the Twilight Zone.