ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
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NASA's Scientific Visualizations Studio has always contained a wealth of
geologic visualizations.  They are all computer generated, but it gives animations
of various landforms, erosion patterns, etc.

You can find the site at http://svs.gsfc.nasa.gov/

There are dozens of free downloads on this site......

Enjoy.

Scott McQuerry
Director
Pioneer Ridge Science Education Center
1656 South Speck
Independence, MO 64057

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