Vertical GeoSolutions (VGSI) has been working on an Illinois Native Tallgrass Prairie Mapping Project to catalog and visualize the state's Tallgrass Prairies. We've been using the Illinois Department of Natural Resources Nature Preserve Directory as a source for Prairie Preserve location information and then visualizing them through Google Earth. Last night we posted the first of many Google Earth files on the VGSI website. Here's a link to VGSI's Illinois Native
Tallgrass Prairie Mapping Project page. Link.
Here's a link to our first Google Earth file. Link.
Here is the Google Maps Link for the same picture. Link.
Here is a small thumbnail of what we have so far: