Ameren had wanted to build two more reservoirs on Church Mountain to the right.
Follow the Taum Sauk developments at
Take a tour of the disaster with a Google Earth KMZ file.
You of course need to have Google Earth installed (free) and have a high bandwidth internet connection. The tour is more dramatic if you play with the horizon angle button and also set the terrain exaggeration to 3 (tools/options/evalation exaggeration)