Yellowstone National Park: Historic 3-D Photographs Featuring Park Geology
http://3dparks.wr.usgs.gov/yell/index.html

Stoffer Phil, USGS Western Earth Surface Processes Team


This source provides a series of 34 historic photographs of well-known geologic landmarks in Yellowstone National Park. The photographs can be viewed individually or as part of a tour that begins at Old Faithful and proceeds in a clockwise route around the park. The images were created by digital manipulation of antique stereographs and they may be viewed as black and white photos or in 3-D using special stereographic glasses.

This resource is referenced here:
Subject: Geoscience:Geology
Topics: Earth surface
Focus on Yellowstone: Geothermal processes and features