dem.tar.gz:
  Examples from 3DEM (http://www.visualizationsoftware.com/3dem.html).
Contains:
  RUN_dem
  dem 

steve.tar.gz
  3D geologic maps by Steve Reynolds using Bryce.
Contains:
  RUN_steve
  steve

steve2.tar.gz
  3D geologic maps by Steve Reynolds using Bryce.
Contains:
  RUN_steve2
  steve2