Old dog 417 Posted June 11, 2018 Share Posted June 11, 2018 Evidently these really can happen anywhere.... od http://www.foxnews.com/us/2018/06/11/boater-dies-after-sinkhole-creates-whirlpool-on-arkansas-river.html Link to comment Share on other sites More sharing options...
Al Agnew Posted June 11, 2018 Share Posted June 11, 2018 Not surprising. The Ozarks is classic karst topography, which means the underground is honeycombed with voids, fissures, and caves. It's the same thing that causes big springs, like Mammoth Spring. Grand Gulf is a collapsed cave system. So a new sinkhole opening up is too be expected on a geologic time scale. It's just that this one happened to open up now. It will be interesting to find out how much water is being lost to it, and where that water will come back to the surface. And whether it will enlarge and take more and more of Spring River. Edit: upon reading a little more about it, seems that it's just a hole that opened up to take water beneath a bit of a ledge, and back out just downstream. Not really a sinkhole. tjm 1 Link to comment Share on other sites More sharing options...
tjm Posted June 12, 2018 Share Posted June 12, 2018 http://forums.ozarkanglers.com/topic/63552-sinkhole-on-the-spring-river/ Link to comment Share on other sites More sharing options...
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