The Wyoming State Geological Survey has completed their Yellowstone Geologic GIS Database that explores the geological wonders of Yellowstone National Park
A note in the WYOMING BUSINESS REPORT details the scope and intent of the newly compiled database. A new website has been launched to showcase the data. It includes interactive sections and is well worth a click: HERE.
This is a compilation of resources from many research entities and is provided in a single "searchable" database. As with any new website there are a couple of broken links and "page not found" errors.
On the whole this is a very valuable GIS database and includes integrating links to Wyoming Geology and even provides a media gallery.