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someone here will solve it in the first page, yet science is unsure. http://gosmiley.com/eyecatcher/eye_of_the_sahara.html
"It's a source of great pride, that when I google my name, I find book titles and not mug shots." Daniel C. Chamberlain
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Gods seven billion mile shooting range?
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Not impact. Not volcanic, yet entirely physical and smaller examples are found all over the place.
"It's a source of great pride, that when I google my name, I find book titles and not mug shots." Daniel C. Chamberlain
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Would still make a great long (really long) range target.
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Devils Tower in Wyoming come to mind
GOA
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In a way, you're sort of close, but that was volcanic and this isn't.
"It's a source of great pride, that when I google my name, I find book titles and not mug shots." Daniel C. Chamberlain
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Never seen that before, it's pretty damn cool.
The major difference between belief and fact is those who believe something have come to a conclusion no facts will contradict. Well informed people are open to new facts that oppose their beliefs. That also defines an open and closed mind.
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GOA
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GOA
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Alien pit mining operation.
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Crop circles 
"Our Constitution was made only for a moral and religious people. It is wholly inadequate to the government of any other." - John Adams
Turdlike, by default.
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![[Linked Image]](http://militarysignatures.com/signatures/member475.png) Keep the Wind in your Face, Sun at your Back, & Silhouette in Shadows Know guns, know peace, know safety No guns, no peace, no safety
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Classic example of a damnifino. 
Quando Omni Moritati
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E.T. phoned home and they came and got him! 
Speak softly and use a big bore...
Where's El Cid when we need him...
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Looks like a laccolith to me. There is a collapsed laccolith in Big Bend Ranch State Park in West Texas, but it is only about 50+ square miles in area (approximately 10 miles in diameter).
Ben
Some days it takes most of the day for me to do practically nothing...
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In a way, you're sort of close, but that was volcanic and this isn't. From wikipedia: "It is often difficult to reconstruct shapes of intrusions. For instance, Devils Tower in Wyoming was thought to be a volcanic neck, but study has revealed it to be an eroded laccolith."
Last edited by mudhen; 03/30/12.
Ben
Some days it takes most of the day for me to do practically nothing...
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Campfire 'Bwana
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They are from whirlpools when the earth was covered by water.
We may know the time Ben Carson lied, but does anyone know the time Hillary Clinton told the truth?
Immersing oneself in progressive lieberalism is no different than bathing in the sewage of Hell.
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They are from whirlpools when the earth was covered by water. You mean that's a plugged up drain?  Ed
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They are from whirlpools when the earth was covered by water. Ding...ding...ding!!!! We have a winner. They are tidal in nature and this one was on a grand scale~ They call them maelstroms and there are a couple big ones but not nearly so large! This was enormous and at a time when the water over the area was fairly shallow and tidal flow caused a huge maelstrom over thousands of years. I'm surprised science hasn't come out and stated it emphatically. Forest for the trees I guess. Dan
"It's a source of great pride, that when I google my name, I find book titles and not mug shots." Daniel C. Chamberlain
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WOW! That is cool! I imagine from sapce it must have looked similar to Jupiters' Big Red Spot?
Thanks for sharing that, Dan.
Ed
"Not in an open forum, where truth has less value than opinions, where all opinions are equally welcome regardless of their origins, rationale, inanity, or truth, where opinions are neither of equal value nor decisive." Ken Howell
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