These files were recently created by the Newton Basins Generator. Click on an html file for the full page of information. The gif files just have the associated images. All the images in the gif files are in the public domain. They may be used for any purpose whatsoever.

Note: there are only 31 different image files used for all the images. If you use the Newton Basin Generator for a lot of images, then one of these files may be used for more than one image. Recent web browsers cache their images, and that means they won't request the new image file, not realizing that it changed from the old image. If that happens, you can usually request that the file be reloaded to get the new version.