Hi I was reading your article operation high jump. I noticed the maps of the antarctica where the warm lakes and Alien base was as explored by admiral bird. If you google map the exact location there is a huge cave/canyon there. As you zoom in slowly you will notice the map is edited at a specific zoom level and in only in that spot in the entire area. It does show some pretty crazy surface features free of snow. Once the edit appears you can keep zooming but the detail level remains the same.