>>15770211Who knows. It's certainly creative. Kiew has such a topographic anomaly, too, although it's former USSR. It's the city's subway system which was co-designed as nuclear bunker.
>>15770194My apologies. I didn't get your reference at first.
I think this DUMB map might be accurate. Two reasons for that:
1) We've already found the one in Denver.
2) I remember that I also found one in the the middle of nowhere in Northern California. At first I dismissed it as natural formation. But now, with the map in mind, I think that was another one. Unfortunately, I can't find it right now.
>>15770212Read the other bread. Some were discussing that question and it looks like cellphones can produce store location data without being connected to the outside world. They then send the collected data away later.
Personally, my suspicion is more like satellite data being responsible for the map showing these strange routes.
The reason is the way the topography goes down. In some sites, the walls are tilted which would indicate a vehicle tunnel. Cellphones notice when you either walk or driving in a car or something. Otherwise it wouldn't be possible for Google to offer different functions for walking&cars.
That means, beside cellphone data, they need other layers of data from something else. This usually means locally measured stuff (at least for the outside), and also data from satellites.
