MYSTERIOUS ;-) The River runs Uphill - Black Forest - DJI Phantom 4 Drone Footage

I would like to share a video from April of this year that I like a lot. It has been a sunny and very lovely day and my girlfriend Tina and I spend some time at a nearby river near Pforzheim in Germany enjoying the first warm sunrays of 2017. I also took the chance to try out my previous Phantom 4 drone and shot this footage. From the right viewing angle (against the streaming direction) at this particular location of the river Enz it looks like the river runs uphill due to the structure of rocks in the background. You can see this very good in the footage from about 4:10 min on. https://steemit.com/nature/@sniffbiff/mysterious-the-river-runs-uphill-black-forest-dji-phantom-4-drone-footage