Ran across your site tonight – I’ve used Google Earth to search for missing aircraft for past three years – ran across this feature while sweeping one of the areas – thought you might like to see. ( I entered down into the Vortex and saved many interesting pictures – it actually threw me back out and pinpointed me on hillside nearby numerous times. ) – will not disclose location, however would enjoy comeback about your thoughts. It’s formed by waterfall energy – hope the few pictures I’ve sent come through O.K. – This is in British Columbia, Canada. – – – – Ken