Prairie Research Institute LibraryFormed from the merger of the four State Scientific Survey Libraries, the Illinois Natural History Survey Library, Illinois State Geological Survey Library, Illinois State Water Survey Library, and Illinois Sustainable Technology Center Library. The combined library collection contains more than 58,000 cataloged titles and more than 94,000 items. In addition to the historical output of the State Scientific Surveys, collection coverage includes earth and environmental sciences, ecology, environmental education, environmental protection and conservation, pollution prevention, and natural history, and natural resources of all types with a focus on topics relevant to Illinois and the surrounding region.