Big square hole in the ground that appeared one day when a cave fell in. This is just the edge.
From the 1996 eruption. Top of the ski lift, Mount Ruapehu, New Zealand.
Clouds in 3D from the plane, approaching New Zealand.
Stereo (3D) photography.pdf (688 K)
How to take and view stereo pairs and how we see in depth.
Donz stereo photos
First attempt to enable Andreas' applet .