The wall pictured was taken from the northwest corner aiming southeast. The side of the wall pictured faces a huge cliff face, and at some points, the cliff has fallen down on the structure (on the NE side).
Look in the photo in post 8, and the wall at the back of the space is the same wall pictured in post 1, but from the other (south) side. Some of the wall has fallen down since the 1930s, but much has been preserved. The cliff face directly behind the structure (post 8 again) is where much of the stone came from. If you type in Chaco Culture Historical Monument in google maps, and zoom in on the Pueblo Bonito, you can get a much better idea of what's still standing. Some amazing pictures are out there of the site doing an image search.
Excellent. Thx.