I have a handful bunch of the vortex locations and having since discovering this wonderful resource, I have been going to as many as possible in North America (for now) and I was wondering if you could tell me anything about the question marks and what they may represent. Thank you so much for your help and all your time and effort. It is greatly appreciated. – Jackie
Greetings Jackie, thank you for your kind words. The question marks are gravity hills, magnetic hills and ghost lights and otherwise unexplained locations.