I photographed these lava flows with two cameras to provide stereoscopic images that can be viewed with a 3-D effect.  These images are the ones with three vertical panels.  The left and center images can be viewed using the "cross-eyed" method, which is explained here and is also needed to view stereo images elsewhere on this website.  The center and right image can be viewed with a conventional (parallel) strereo viewer, as the center image is the left eye view and the right image is the right eye view.