Here’s the results of sonar mapping of the underground room that is at the bottom of the 10X shaft. This is confirming the discovery made by Dan Blankenship years earlier, and first photographic proof to the rest of the world. To me, this is NEWS. It’s revealing history.

Here are the guys who produced the 3D map from the sonar recordings they made. Sorry, I don’t have their names just yet.

There are also tunnels that lead into this chamber, but the walls of those tunnels have gradually pushed inward over the centuries, compressing the space into unpassable narrow cracks, or so it seems.

Anyway, here’s a Computer generated graphic illustration of the dimensions of the chamber, including ceiling to floor height.

Update. Here’s more equipment used down 10X. The Spectrum 90.

And I think this is the sonar

This is a raw-looking 2D sonar map. Multiple layers of these are used to build up the 3D map.