ISEN-ASTC-L is a service of the Association of Science-Technology Centers Incorporated, a worldwide network of science museums and related institutions. ***************************************************************************** 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 *********************************************************************** More information about the Informal Science Education Network and the Association of Science-Technology Centers may be found at http://www.astc.org. To remove your e-mail address from the ISEN-ASTC-L list, send the message SIGNOFF ISEN-ASTC-L in the BODY of a message to [log in to unmask]