wow that's amazing! My family's main bloodline is native american (Seneca), so seeing petroglyphs in person was an unreal experience for me. The rocks and spiral shape make it look like its somewhere near moab, Utah. I could be 100% wrong on the location, but I believe the Anasazi tribe was known for similar pterglyphs, great footage Gustavo!
Here more information about this. http://www.darkgovernment.com/news/drone-operator-discovers-ancient-petroglyphs-in-utah/ The author is a member of this forum, maybe we could ask him about this video.