All crop circles are man made, how do we know? Well when crop circles became big news (80's 90's) farmers were reporting it to the police as criminal damage they would get a crime reference number from the police and the insurance company's would pay out they were made by people without the farmers consent. Now there are hardly any reports to the police and hardly any payouts, why? Because the people that create them pay the farmers to use there land and destroy their crops simple everyone wins the farmer doesn't lose out and the people that create these crop circles get to continue to make them which funds what is now a massive busIness, they can also work in peace without the fear of getting caught and have much more time to create these crop circles, simple