More goodies from the USGS Volcano Observatory. They have a collection of 3-D images from around Yellowstone NP. They have several sets of images. There are vintage red/cyan 3-D images and some red-cyan 3-D images taken with a modern camera (that means full-color). The vintage images are made from old black-and-white stereographs. Having the original stereographs, of course, would allow us to view them without red-green glasses.
They also have 3-D tours of other national parks. I’ll create posts for the other parks on our trip that they cover.
You can do a quick web search to find suppliers of 3-D glasses. These guys look competent.
Alternately, you can enlarge these squares and print them on a transparency. (Hold the cyan over your right eye, the red over your left eye.)
